{"id":22719,"date":"2026-09-15T11:44:30","date_gmt":"2026-09-15T02:44:30","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=22719"},"modified":"2026-09-15T11:44:30","modified_gmt":"2026-09-15T02:44:30","slug":"xserver-mail","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail","title":{"rendered":"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/09\/xserver-mail.png\" alt=\"\" width=\"1734\" height=\"907\" class=\"alignnone size-full wp-image-22720\" \/><\/p>\n<p>\u300c\u53d6\u5f15\u5148\u306b\u30e1\u30fc\u30eb\u3092\u9001\u3063\u305f\u306f\u305a\u306a\u306e\u306b\u3001\u5c4a\u3044\u3066\u3044\u306a\u3044\u3068\u9023\u7d61\u304c\u6765\u305f\u300d\u300c\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u306e\u81ea\u52d5\u8fd4\u4fe1\u304c\u4e00\u90e8\u306e\u304a\u5ba2\u69d8\u306b\u3060\u3051\u5c4a\u304b\u306a\u3044\u300d\u3002Xserver\uff08\u30a8\u30c3\u30af\u30b9\u30b5\u30fc\u30d0\u30fc\uff09\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u4f01\u696d\u306eWeb\u62c5\u5f53\u8005\u304b\u3089\u3001\u3053\u3046\u3057\u305f\u76f8\u8ac7\u306f\u5f8c\u3092\u7d76\u3061\u307e\u305b\u3093\u3002<\/p>\n<p>\u3084\u3063\u304b\u3044\u306a\u306e\u306f\u3001Xserver\u306e\u30e1\u30fc\u30eb\u30c8\u30e9\u30d6\u30eb\u304c<strong>\u300c\u539f\u56e0\u306e\u7570\u306a\u308b\u8907\u6570\u306e\u554f\u984c\u300d\u304c\u3072\u3068\u307e\u3068\u3081\u306b\u300c\u5c4a\u304b\u306a\u3044\u300d\u3068\u8868\u73fe\u3055\u308c\u3066\u3044\u308b<\/strong>\u70b9\u3067\u3059\u3002\u9001\u4fe1\u5074\u306e\u554f\u984c\u306a\u306e\u304b\u53d7\u4fe1\u5074\u306e\u554f\u984c\u306a\u306e\u304b\u3001\u30b5\u30fc\u30d0\u30fc\u8d77\u56e0\u306a\u306e\u304b\u8a2d\u5b9a\u8d77\u56e0\u306a\u306e\u304b\u3092\u5207\u308a\u5206\u3051\u306a\u3044\u307e\u307e\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u3068\u3001\u5fa9\u65e7\u304c\u9045\u308c\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u65b0\u305f\u306a\u4e0d\u9054\u8981\u56e0\u3092\u4f5c\u308a\u8fbc\u3093\u3067\u3057\u307e\u3046\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001Xserver\u306e\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u3068\u304d\u306e\u5207\u308a\u5206\u3051\u624b\u9806\u3092\u3001\u9001\u4fe1\u5074\u30fb\u53d7\u4fe1\u5074\u306e\u4e21\u9762\u304b\u3089\u6574\u7406\u3057\u307e\u3059\u3002\u305d\u306e\u3046\u3048\u3067\u3001Xserver\u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u8a18\u8f09\u3055\u308c\u305f\u9001\u4fe1\u6570\u306e\u4e0a\u9650\u3084\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u6a5f\u80fd\u306e\u4ed5\u69d8\u3068\u3044\u3063\u305f\u4e00\u6b21\u60c5\u5831\u3092\u3082\u3068\u306b\u3001\u696d\u52d9\u30e1\u30fc\u30eb\u3084\u30e1\u30eb\u30de\u30ac\u3092<strong>\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u305f\u3081\u306e\u73fe\u5b9f\u7684\u306a\u6253\u3061\u624b<\/strong>\u307e\u3067\u8e0f\u307f\u8fbc\u3093\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002\u8aad\u307f\u7d42\u308f\u308b\u3053\u308d\u306b\u306f\u3001\u81ea\u793e\u306e\u30b1\u30fc\u30b9\u304c\u3069\u306e\u30d1\u30bf\u30fc\u30f3\u306b\u8a72\u5f53\u3057\u3001\u6b21\u306b\u4f55\u3092\u3059\u3079\u304d\u304b\u304c\u5224\u65ad\u3067\u304d\u308b\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u5b9f\u969b\u306b\u30c8\u30e9\u30d6\u30eb\u304c\u767a\u751f\u3057\u305f\u969b\u306f\u3001\u307e\u305aXserver\u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb\u3092\u78ba\u8a8d\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30b5\u30dd\u30fc\u30c8\u3078\u554f\u3044\u5408\u308f\u305b\u308b\u5bfe\u5fdc\u304c\u57fa\u672c\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong>Xserver\u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb\uff1a<a href=\"https:\/\/www.xserver.ne.jp\/manual\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.xserver.ne.jp\/manual\/<\/a><\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2025\/03\/26439_728_90.png\" alt=\"blastengine\u306e\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"728\" height=\"90\" class=\"alignnone size-full wp-image-18153\" \/><\/p>\n<h2>Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u3068\u304d\u306b\u6700\u521d\u306b\u3084\u308b\u3079\u304d\u5207\u308a\u5206\u3051<\/h2>\n<p>\u7d50\u8ad6\u304b\u3089\u8a00\u3048\u3070\u3001<strong>\u6700\u521d\u306b\u3084\u308b\u3079\u304d\u3053\u3068\u306f\u8a2d\u5b9a\u5909\u66f4\u3067\u306f\u306a\u304f\u300c\u5207\u308a\u5206\u3051\u300d<\/strong>\u3067\u3059\u3002\u539f\u56e0\u306e\u5f53\u305f\u308a\u3092\u4ed8\u3051\u305a\u306b\u8a2d\u5b9a\u3092\u3044\u3058\u308b\u3068\u3001\u5fa9\u65e7\u304c\u9045\u308c\u308b\u3060\u3051\u3067\u306a\u304f\u3001SPF\u30ec\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u63db\u3048\u30df\u30b9\u306a\u3069\u65b0\u305f\u306a\u4e0d\u9054\u8981\u56e0\u3092\u4f5c\u308a\u8fbc\u3093\u3067\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u5207\u308a\u5206\u3051\u306f\u3001\u6b21\u306e3\u3064\u306e\u8cea\u554f\u306b\u9806\u756a\u306b\u7b54\u3048\u308b\u3060\u3051\u3067\u5927\u534a\u304c\u5b8c\u4e86\u3057\u307e\u3059\u3002<\/p>\n<h3>\u300c\u9001\u308c\u3066\u3044\u306a\u3044\u300d\u306e\u304b\u300c\u5c4a\u3044\u3066\u3044\u306a\u3044\u300d\u306e\u304b\u3092\u5206\u3051\u308b<\/h3>\n<p>\u307e\u305a\u78ba\u8a8d\u3059\u3079\u304d\u306f\u3001\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u65b9\u5411\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u81ea\u793e\u304b\u3089\u9001\u3063\u305f\u30e1\u30fc\u30eb\u304c\u76f8\u624b\u306b\u5c4a\u304b\u306a\u3044<\/strong> \u2192 \u9001\u4fe1\u5074\u306e\u554f\u984c\uff08\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3001\u9001\u4fe1\u5236\u9650\u3001\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff09<\/li>\n<li><strong>\u81ea\u793e\u5b9b\u306e\u30e1\u30fc\u30eb\u304c\u53d7\u4fe1\u3067\u304d\u306a\u3044<\/strong> \u2192 \u53d7\u4fe1\u5074\u306e\u554f\u984c\uff08DNS\u3001\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u5bb9\u91cf\u3001\u30d5\u30a3\u30eb\u30bf\uff09<\/li>\n<li><strong>\u9001\u53d7\u4fe1\u306e\u4e21\u65b9\u304c\u3067\u304d\u306a\u3044<\/strong> \u2192 \u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u306e\u8a2d\u5b9a\u307e\u305f\u306f\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u4e00\u6642\u7684\u306a\u969c\u5bb3<\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u3053\u3092\u6df7\u540c\u3057\u305f\u307e\u307e\u8abf\u67fb\u3092\u59cb\u3081\u308b\u3068\u3001\u307e\u3063\u305f\u304f\u95a2\u4fc2\u306e\u306a\u3044\u8a2d\u5b9a\u753b\u9762\u3092\u4f55\u6642\u9593\u3082\u773a\u3081\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u300c\u8ab0\u304b\u3089\u8ab0\u3078\u306e\u30e1\u30fc\u30eb\u304c\u3001\u3044\u3064\u304b\u3089\u3001\u3069\u306e\u304f\u3089\u3044\u306e\u983b\u5ea6\u3067\u5931\u6557\u3057\u3066\u3044\u308b\u306e\u304b\u300d\u3092\u5148\u306b\u66f8\u304d\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u7279\u5b9a\u306e\u5b9b\u5148\u30c9\u30e1\u30a4\u30f3\uff08Gmail\u5b9b\u3060\u3051\u3001@docomo.ne.jp\u5b9b\u3060\u3051\uff09\u3067\u5931\u6557\u3057\u3066\u3044\u308b\u306e\u304b\u3001\u3059\u3079\u3066\u306e\u5b9b\u5148\u3067\u5931\u6557\u3057\u3066\u3044\u308b\u306e\u304b\u3082\u91cd\u8981\u306a\u60c5\u5831\u3067\u3059\u3002<strong>\u7279\u5b9a\u30c9\u30e1\u30a4\u30f3\u3060\u3051\u5931\u6557\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u53d7\u4fe1\u5074\u306e\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u30dd\u30ea\u30b7\u30fc\u304b\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u554f\u984c\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/strong><\/p>\n<h3>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u3063\u3066\u304d\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>\u9001\u4fe1\u5074\u306e\u554f\u984c\u3067\u3042\u308b\u5834\u5408\u3001\u6b21\u306b\u898b\u308b\u3079\u304d\u306f\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\uff08\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\uff09\u306e\u6709\u7121\u3067\u3059\u3002<\/p>\n<p>\u300cMAILER-DAEMON\u300d\u3084\u300cMail Delivery System\u300d\u304b\u3089\u306e\u81ea\u52d5\u8fd4\u4fe1\u304c\u5c4a\u3044\u3066\u3044\u308c\u3070\u3001\u30e1\u30fc\u30eb\u306f\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u306b\u62d2\u5426\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u30a8\u30e9\u30fc\u672c\u6587\u306b\u542b\u307e\u308c\u308b\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u304c\u539f\u56e0\u3092\u307b\u307c\u7279\u5b9a\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3001<span style=\"color: #ff0000;\"><strong>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u3063\u3066\u304d\u3066\u3044\u306a\u3044\u306e\u306b\u5c4a\u3044\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u53d7\u4fe1\u5074\u3067\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044<\/strong><\/span>\u3068\u8003\u3048\u3066\u304f\u3060\u3055\u3044\u3002\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u306f\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u3063\u305f\u3046\u3048\u3067\u3001\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u5165\u308c\u306a\u3044\u5224\u65ad\u3092\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u72b6\u614b\u306f\u30a8\u30e9\u30fc\u3068\u3057\u3066\u89b3\u6e2c\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u9001\u4fe1\u5074\u306f\u6c17\u3065\u304d\u306b\u304f\u304f\u3001\u653e\u7f6e\u3055\u308c\u304c\u3061\u3067\u3059\u3002<\/p>\n<p>\u307e\u305a\u306f\u76f8\u624b\u5148\u306b\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306e\u78ba\u8a8d\u3092\u4f9d\u983c\u3059\u308b\u304b\u3001\u81ea\u793e\u3067\u7528\u610f\u3057\u305fGmail\u30fbOutlook\u306e\u30c6\u30b9\u30c8\u30a2\u30ab\u30a6\u30f3\u30c8\u5b9b\u306b\u540c\u3058\u6587\u9762\u3092\u9001\u308a\u3001\u3069\u3053\u306b\u7740\u5730\u3059\u308b\u304b\u3092\u78ba\u304b\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u304b\u3089\u539f\u56e0\u3092\u7d5e\u308a\u8fbc\u3080<\/h3>\n<p>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u624b\u5143\u306b\u3042\u308b\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u65e9\u898b\u8868\u3067\u539f\u56e0\u3092\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<thead>\n<tr>\n<th>\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9<\/th>\n<th>\u610f\u5473<\/th>\n<th>\u4e3b\u306a\u539f\u56e0<\/th>\n<th>\u4e00\u6b21\u5bfe\u5fdc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>550 5.7.1<\/td>\n<td>\u9001\u4fe1\u62d2\u5426\uff08\u6c38\u7d9a\uff09<\/td>\n<td>\u9001\u4fe1\u5143IP\u306e\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u63b2\u8f09\u3001\u53d7\u4fe1\u5074\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc<\/td>\n<td>\u63b2\u8f09\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u89e3\u9664\u7533\u8acb\u3001\u9001\u4fe1\u7d4c\u8def\u306e\u898b\u76f4\u3057<\/td>\n<\/tr>\n<tr>\n<td>550 5.1.1<\/td>\n<td>\u5b9b\u5148\u4e0d\u660e\uff08\u6c38\u7d9a\uff09<\/td>\n<td>\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5165\u529b\u8aa4\u308a\u3001\u5b9b\u5148\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u524a\u9664<\/td>\n<td>\u30a2\u30c9\u30ec\u30b9\u3092\u518d\u78ba\u8a8d\u3057\u3001\u30ea\u30b9\u30c8\u304b\u3089\u9664\u5916<\/td>\n<\/tr>\n<tr>\n<td>554 5.7.1<\/td>\n<td>\u30dd\u30ea\u30b7\u30fc\u306b\u3088\u308b\u62d2\u5426\uff08\u6c38\u7d9a\uff09<\/td>\n<td>\u53d7\u4fe1\u5074\u306e\u30b9\u30d1\u30e0\u5224\u5b9a\u3001\u8a8d\u8a3c\u5931\u6557<\/td>\n<td>SPF\/DKIM\/DMARC\u306e\u8a2d\u5b9a\u3092\u78ba\u8a8d<\/td>\n<\/tr>\n<tr>\n<td>421 \/ 451<\/td>\n<td>\u4e00\u6642\u7684\u306a\u30a8\u30e9\u30fc<\/td>\n<td>\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u306e\u904e\u8ca0\u8377\u3001\u9001\u4fe1\u30ec\u30fc\u30c8\u306e\u8d85\u904e<\/td>\n<td>\u6642\u9593\u3092\u304a\u3044\u3066\u518d\u9001\u3001\u9001\u4fe1\u30da\u30fc\u30b9\u3092\u843d\u3068\u3059<\/td>\n<\/tr>\n<tr>\n<td>552 5.3.4<\/td>\n<td>\u30e1\u30c3\u30bb\u30fc\u30b8\u30b5\u30a4\u30ba\u8d85\u904e<\/td>\n<td>\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u304c\u53d7\u4fe1\u5074\u306e\u4e0a\u9650\u3092\u8d85\u3048\u3066\u3044\u308b<\/td>\n<td>\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001\u30b5\u30fc\u30d3\u30b9\u306b\u5207\u308a\u66ff\u3048\u308b\uff08Xserver\u306e\u9001\u4fe1\u53ef\u80fd\u30b5\u30a4\u30ba\u306f1\u901a100MB\u304c\u76ee\u5b89\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u203b\u4e0a\u8a18\u306fSMTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e\u4e00\u822c\u7684\u306a\u610f\u5473\u3067\u3059\u3002\u5b9f\u969b\u306b\u8fd4\u3055\u308c\u308b\u6587\u8a00\u3084\u5224\u5b9a\u57fa\u6e96\u306f\u3001\u53d7\u4fe1\u5074\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><code>550 5.7.1<\/code> \u304c\u8fd4\u3063\u3066\u304d\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306e\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u63b2\u8f09\u3092\u7591\u3044\u307e\u3059\u3002Xserver\u306e\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u3067\u306f\u3001\u9001\u4fe1\u5143IP\u306f\u81ea\u793e\u5c02\u7528\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u63b2\u8f09\u72b6\u6cc1\u306f\u7121\u6599\u30c4\u30fc\u30eb\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\u672c\u6587\u304c\u5165\u308a\u307e\u3059<\/div>\n<p>\u203b\u3044\u305a\u308c\u3082\u7b2c\u4e09\u8005\u304c\u63d0\u4f9b\u3059\u308b\u30c4\u30fc\u30eb\u3067\u3059\u3002\u5229\u7528\u306b\u3042\u305f\u3063\u3066\u306f\u5404\u30b5\u30fc\u30d3\u30b9\u306e\u898f\u7d04\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306f\u3001Xserver\u306e\u7ba1\u7406\u753b\u9762\u304b\u3089\u78ba\u8a8d\u3059\u308b\u304b\u3001\u9001\u4fe1\u6e08\u307f\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u60c5\u5831\u306b\u3042\u308b\u300cReceived:\u300d\u30d5\u30a3\u30fc\u30eb\u30c9\u304b\u3089\u628a\u63e1\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>Xserver\u304b\u3089\u9001\u3063\u305f\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u4e3b\u306a\u539f\u56e0<\/h2>\n<p>\u5207\u308a\u5206\u3051\u306e\u7d50\u679c\u304c\u300c\u9001\u4fe1\u5074\u306e\u554f\u984c\u300d\u3060\u3063\u305f\u5834\u5408\u3001\u539f\u56e0\u306f\u6b21\u306e5\u3064\u306e\u3044\u305a\u308c\u304b\u306b\u53ce\u675f\u3057\u307e\u3059\u3002<\/p>\n<h3>\u5171\u7528IP\u30a2\u30c9\u30ec\u30b9\u304c\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b<\/h3>\n<p>Xserver\u306e\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u3067\u306f\u30011\u3064\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u591a\u6570\u306e\u5951\u7d04\u8005\u304c\u5171\u6709\u3057\u3066\u3044\u307e\u3059\u3002\u540c\u3058IP\u3092\u4f7f\u3046\u4ed6\u306e\u5229\u7528\u8005\u304c\u5927\u91cf\u914d\u4fe1\u3092\u884c\u3063\u305f\u308a\u3001\u30b5\u30a4\u30c8\u306e\u6539\u3056\u3093\u88ab\u5bb3\u3067\u8e0f\u307f\u53f0\u306b\u3055\u308c\u305f\u308a\u3059\u308b\u3068\u3001<strong>\u81ea\u793e\u306b\u307e\u3063\u305f\u304f\u975e\u304c\u306a\u304f\u3066\u3082IP\u30a2\u30c9\u30ec\u30b9\u5168\u4f53\u304c\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u63b2\u8f09\u3055\u308c\u308b<\/strong>\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u63b2\u8f09\u3055\u308c\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306a\u75c7\u72b6\u304c\u73fe\u308c\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u7279\u5b9a\u306e\u5b9b\u5148\u306b\u3060\u3051\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u305a\u3001\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u3063\u3066\u304f\u308b<\/li>\n<li>\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u308b<\/li>\n<li>\u914d\u4fe1\u304c\u5927\u5e45\u306b\u9045\u5ef6\u3059\u308b<\/li>\n<li>\u53d6\u5f15\u5148\u304b\u3089\u306e\u300c\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u300d\u3068\u3044\u3046\u554f\u3044\u5408\u308f\u305b\u304c\u5897\u3048\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u308c\u306f\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u7279\u6709\u306e\u30ea\u30b9\u30af\u3067\u3042\u308a\u3001Xserver\u306b\u9650\u3089\u305a\u591a\u304f\u306e\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u5171\u7528\u30d7\u30e9\u30f3\u3067\u8d77\u3053\u308a\u5f97\u308b\u4e8b\u8c61\u3067\u3059\u3002<\/p>\n<h3>\u9001\u4fe1\u6570\u306e\u4e0a\u9650\u3092\u8d85\u3048\u3066\u3044\u308b<\/h3>\n<p>Xserver\u306b\u306f\u3001\u5168\u30d7\u30e9\u30f3\u5171\u901a\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u6570\u306e\u76ee\u5b89\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u306f\u6b21\u306e\u3088\u3046\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>1\u6642\u9593\u3042\u305f\u308a\uff1a1,500\u901a<\/strong><\/li>\n<li><strong>1\u65e5\u3042\u305f\u308a\uff1a15,000\u901a<\/strong><\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u306e\u6570\u5024\u306f\u3042\u304f\u307e\u3067\u76ee\u5b89\u3067\u3042\u308a\u3001\u591a\u5c11\u306e\u8d85\u904e\u306f\u8a31\u5bb9\u7bc4\u56f2\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u6ce8\u610f\u3059\u3079\u304d\u306f\u3001<strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u65ad\u3055\u308c\u308b\u914d\u4fe1\u304c\u884c\u308f\u308c\u305f\u5834\u5408\u306f\u3001\u3053\u306e\u7bc4\u56f2\u5185\u3067\u3042\u3063\u3066\u3082\u5236\u9650\u304c\u304b\u304b\u308b<\/strong>\u3068\u660e\u8a18\u3055\u308c\u3066\u3044\u308b\u70b9\u3067\u3059\u3002\u3064\u307e\u308a\u300c\u4e0a\u9650\u3055\u3048\u5b88\u3063\u3066\u3044\u308c\u3070\u5b89\u5168\u300d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u53c2\u7167\uff1a<a href=\"https:\/\/www.xserver.ne.jp\/manual\/man_mail_spec.php\" target=\"_blank\" rel=\"noopener\">Xserver\uff0f\u30e1\u30fc\u30eb\u95a2\u9023\u306e\u4ed5\u69d8\u4e00\u89a7<\/a><\/p>\n<p>\u4e3b\u8981\u306a\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u9001\u4fe1\u5236\u9650\u306f\u30b5\u30fc\u30d3\u30b9\u3054\u3068\u306b\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u3002\u5236\u9650\u5024\u3084\u30ab\u30a6\u30f3\u30c8\u65b9\u6cd5\u306f\u5909\u66f4\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001\u904b\u7528\u524d\u306b\u5fc5\u305a\u5404\u793e\u306e\u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb\u3067\u6700\u65b0\u60c5\u5831\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mail-delivery\/rentalserver-mail\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2021\/11\/rentalserver-mail1.jpg\" alt=\"\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u30e1\u30fc\u30eb\u4e00\u6589\u9001\u4fe1\u306f\u5371\u967a\uff1f\u5c4a\u304b\u306a\u3044\u7406\u7531\u3068\u30a2\u30ab\u30a6\u30f3\u30c8\u505c\u6b62\u30ea\u30b9\u30af\" width=\"90\" height=\"54\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u30e1\u30fc\u30eb\u4e00\u6589\u9001\u4fe1\u306f\u5371\u967a\uff1f\u5c4a\u304b\u306a\u3044\u7406\u7531\u3068\u30a2\u30ab\u30a6\u30f3\u30c8\u505c\u6b62\u30ea\u30b9\u30af<\/div>\n    <div class=\"blogcard_excerpt\">\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u30e1\u30fc\u30eb\u6a5f\u80fd\u3092\u4f7f\u3063\u305f\u4e00\u6589\u9001\u4fe1\u3092\u3059\u308b\u969b\u306b\u306f\u3044\u304f\u3064\u304b\u6ce8\u610f\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u5404\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u914d\u4fe1\u6a5f\u80fd\u3084\u9001\u4fe1\u4e0a\u9650\u306b\u9055\u3044\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u5927\u91cf\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>SPF\u30fbDKIM\u30fbDMARC\u306e\u8a2d\u5b9a\u304c\u4e0d\u5341\u5206<\/h3>\n<p>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u30e1\u30fc\u30eb\u306f\u3001\u53d7\u4fe1\u5074\u3067\u300c\u306a\u308a\u3059\u307e\u3057\u306e\u7591\u3044\u304c\u3042\u308b\u300d\u3068\u5224\u65ad\u3055\u308c\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u5f79\u5272\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>SPF<\/strong>\uff1a\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u30e1\u30fc\u30eb\u3092\u9001\u3063\u3066\u3088\u3044\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u3092\u5ba3\u8a00\u3059\u308b\u4ed5\u7d44\u307f<\/li>\n<li><strong>DKIM<\/strong>\uff1a\u96fb\u5b50\u7f72\u540d\u306b\u3088\u3063\u3066\u30e1\u30fc\u30eb\u304c\u6539\u3056\u3093\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u8a3c\u660e\u3059\u308b\u4ed5\u7d44\u307f<\/li>\n<li><strong>DMARC<\/strong>\uff1aSPF\u30fbDKIM\u306e\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u3092\u3069\u3046\u6271\u3046\u304b\u3092\u3001\u30c9\u30e1\u30a4\u30f3\u6240\u6709\u8005\u304c\u6307\u5b9a\u3059\u308b\u4ed5\u7d44\u307f<\/li>\n<\/ul>\n<\/div>\n<p>Xserver\u3067\u306f\u30b5\u30fc\u30d0\u30fc\u30d1\u30cd\u30eb\u304b\u3089<a href=\"https:\/\/www.xserver.ne.jp\/manual\/man_mail_spf.php\" target=\"_blank\" rel=\"noopener\">SPF\u8a2d\u5b9a<\/a>\u30fb<a href=\"https:\/\/www.xserver.ne.jp\/manual\/man_mail_dkim.php\" target=\"_blank\" rel=\"noopener\">DKIM\u8a2d\u5b9a<\/a>\u30fb<a href=\"https:\/\/www.xserver.ne.jp\/manual\/man_mail_dmarc.php\" target=\"_blank\" rel=\"noopener\">DMARC\u8a2d\u5b9a<\/a>\u304c\u305d\u308c\u305e\u308c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5b9f\u969b\u306b\u8a2d\u5b9a\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u306f\u5951\u7d04\u4e2d\u306e\u30d7\u30e9\u30f3\u306e\u7ba1\u7406\u753b\u9762\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u306e\u3067\u30013\u3064\u3059\u3079\u3066\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3092\u4e00\u5ea6\u30c1\u30a7\u30c3\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u898b\u843d\u3068\u3055\u308c\u304c\u3061\u306a\u306e\u304c\u3001<strong>\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3092\u4f75\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306eSPF\u30ec\u30b3\u30fc\u30c9\u306e\u4e0d\u5099<\/strong>\u3067\u3059\u3002Xserver\u306e\u30e1\u30fc\u30eb\u306b\u52a0\u3048\u3066MA\u30c4\u30fc\u30eb\u3084\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u306e\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u3082\u540c\u3058\u30c9\u30e1\u30a4\u30f3\u3067\u9001\u4fe1\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u308c\u305e\u308c\u306e\u9001\u4fe1\u5143\u3092SPF\u30ec\u30b3\u30fc\u30c9\u306b\u542b\u3081\u306a\u3051\u308c\u3070\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/no-delivery\/identification\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2025\/07\/WEBCAS\u306e\u30b3\u30d4\u30fc.png\" alt=\"\u3010\u30e1\u30fc\u30eb\u306e\u8eab\u5206\u8a3c\u3011SPF\u30fbDKIM\u30fbDMARC\u3067\u300c\u306a\u308a\u3059\u307e\u3057\u300d\u3092\u9632\u304e\u3001\u30e1\u30fc\u30eb\u3092\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u3010\u30e1\u30fc\u30eb\u306e\u8eab\u5206\u8a3c\u3011SPF\u30fbDKIM\u30fbDMARC\u3067\u300c\u306a\u308a\u3059\u307e\u3057\u300d\u3092\u9632\u304e\u3001\u30e1\u30fc\u30eb\u3092\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5<\/div>\n    <div class=\"blogcard_excerpt\">\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u3058\u3083\u306a\u3044\u306e\u306b\u3001\u306a\u305c\u304b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044..\u3002\u300d \u300c\u304a\u5ba2\u69d8\u306b\u9001\u3063\u305f\u5927\u4e8b\u306a\u30e1\u30fc\u30eb\u304c\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u5165\u3063\u3066\u3057\u307e\u3046..\u3002\u300d \u3053\u3093\u306a\u60a9\u307f\u3092\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>Gmail\u30fbYahoo!\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u8005\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044<\/h3>\n<p>2024\u5e742\u6708\u4ee5\u964d\u3001Gmail\u306f\u9001\u4fe1\u8005\u306b\u5bfe\u3059\u308b\u8981\u4ef6\u3092\u660e\u6587\u5316\u3057\u3066\u3044\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u9001\u4fe1\u8005\u306b\u5bfe\u3057\u3066\u306f\u3001SPF\u307e\u305f\u306fDKIM\u306e\u8a2d\u5b9a\u3001\u6b63\u5f15\u304d\u30fb\u9006\u5f15\u304dDNS\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u3001TLS\u63a5\u7d9a\u306e\u5229\u7528\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u30920.3%\u672a\u6e80\u306b\u7dad\u6301\u3059\u308b\u3053\u3068\u306a\u3069\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001Gmail\u5b9b\u306b1\u65e55,000\u901a\u4ee5\u4e0a\u3092\u9001\u4fe1\u3059\u308b\u9001\u4fe1\u8005\u306b\u306f\u3001SPF\u3068DKIM\u306e\u4e21\u65b9\u306e\u8a2d\u5b9a\u3001DMARC\u306e\u8a2d\u5b9a\u3001DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u5408\u683c\u3001\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30e1\u30fc\u30eb\u3078\u306e\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u767b\u9332\u89e3\u9664\u306e\u5b9f\u88c5\u304c\u8ffd\u52a0\u8981\u4ef6\u3068\u3057\u3066\u8ab2\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u898b\u904e\u3054\u305b\u306a\u3044\u306e\u304c<strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387<\/strong>\u3067\u3059\u3002Google\u306f0.10%\u672a\u6e80\u3092\u7dad\u6301\u3057\u30010.30%\u4ee5\u4e0a\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3092\u6c42\u3081\u3066\u304a\u308a\u30010.3%\u3092\u8d85\u3048\u3066\u3044\u308b\u9593\u306f\u914d\u4fe1\u306b\u95a2\u3059\u308b\u7de9\u548c\u306e\u7533\u3057\u7acb\u3066\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u306fGoogle Postmaster Tools\u3067\u65e5\u6b21\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>Yahoo!\u30e1\u30fc\u30eb\u3082\u540c\u6642\u671f\u306b\u9001\u4fe1\u8005\u5411\u3051\u306e\u8981\u4ef6\u3092\u516c\u8868\u3057\u3066\u304a\u308a\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3078\u306e\u5bfe\u5fdc\u3001\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u3067\u306e\u914d\u4fe1\u89e3\u9664\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u7387\u3092\u4f4e\u304f\u4fdd\u3064\u3053\u3068\u306a\u3069\u3001\u6c42\u3081\u3089\u308c\u308b\u5185\u5bb9\u306fGmail\u3068\u304a\u304a\u3080\u306d\u5171\u901a\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u4e3b\u8981\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u8981\u4ef6\u306f\u6a2a\u4e26\u3073\u3067\u53b3\u683c\u5316\u3057\u3066\u3044\u308b<\/strong>\u3068\u6349\u3048\u3001Gmail\u57fa\u6e96\u3067\u5bfe\u5fdc\u3057\u3066\u304a\u304f\u306e\u304c\u73fe\u5b9f\u7684\u3067\u3059\u3002<\/p>\n<p>\u53c2\u7167\uff1a<a href=\"https:\/\/support.google.com\/a\/answer\/14229414?hl=ja\" target=\"_blank\" rel=\"noopener\">Google\uff0f\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u95a2\u3059\u308b\u3088\u304f\u3042\u308b\u8cea\u554f<\/a><\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/gmail-guideline-202402\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/11\/Gmail_guide.png\" alt=\"\u30102026\u5e74\u7248\u3011Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9\uff5cSPF\u30fbDKIM\u30fbDMARC\u30685,000\u901a\u30eb\u30fc\u30eb\u3092\u89e3\u8aac\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u30102026\u5e74\u7248\u3011Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9\uff5cSPF\u30fbDKIM\u30fbDMARC\u30685,000\u901a\u30eb\u30fc\u30eb\u3092\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u306f\u3001\u300cGmail\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u305f\u3044\u306a\u3089\u3001\u9001\u4fe1\u5074\u306f\u3053\u306e\u30eb\u30fc\u30eb\u3092\u5b88\u3063\u3066\u304f\u3060\u3055\u3044\u300d\u3068Google\u304c\u5b9a\u3081\u305f\u8981\u4ef6\u306e\u3053\u3068\u3067\u3059\u3002\u6b63\u5f0f\u540d\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>\u56fd\u5916\u30a2\u30af\u30bb\u30b9\u5236\u9650\u3084\u30dd\u30fc\u30c8\u8a2d\u5b9a\u3067SMTP\u8a8d\u8a3c\u304c\u901a\u3089\u306a\u3044<\/h3>\n<p>\u300c\u305d\u3082\u305d\u3082\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u304b\u3089\u9001\u4fe1\u3067\u304d\u306a\u3044\u300d\u3068\u3044\u3046\u5834\u5408\u306f\u3001\u8a8d\u8a3c\u5468\u308a\u3092\u7591\u3044\u307e\u3059\u3002<\/p>\n<p>Xserver\u306e\u9001\u4fe1\u6642\u306e\u8a8d\u8a3c\u65b9\u5f0f\u306fSMTP AUTH\u3067\u3001<strong>\u56fd\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u306e\u63a5\u7d9a\u306e\u307f\u304c\u5229\u7528\u53ef\u80fd<\/strong>\u3067\u3059\u3002\u6d77\u5916\u51fa\u5f35\u4e2d\u3084\u6d77\u5916VPN\u3092\u7d4c\u7531\u3057\u3066\u3044\u308b\u74b0\u5883\u304b\u3089\u9001\u4fe1\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u306f\u300cSMTP\u8a8d\u8a3c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a\u300d\u304b\u3089\u300c\u56fd\u5916\u30a2\u30af\u30bb\u30b9\u5236\u9650\u8a2d\u5b9a\u300d\u3092\u7121\u52b9\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u56fd\u5916\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u306e\u5229\u7528\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u30d7\u30ed\u30d0\u30a4\u30c0\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u3068\u3057\u306625\u756a\u30dd\u30fc\u30c8\u3092\u30d6\u30ed\u30c3\u30af\uff08OP25B\uff09\u3057\u3066\u3044\u308b\u74b0\u5883\u3067\u306f\u3001\u30dd\u30fc\u30c825\u304c\u4f7f\u3048\u307e\u305b\u3093\u3002Xserver\u3067\u306f\u30dd\u30fc\u30c825\u306e\u4ee3\u66ff\u3068\u3057\u3066\u30b5\u30d6\u30df\u30c3\u30b7\u30e7\u30f3\u30dd\u30fc\u30c8587\u304c\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u9001\u4fe1\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u306e\u9001\u4fe1\u30dd\u30fc\u30c8\u3092587\u307e\u305f\u306f465\u306b\u5909\u66f4\u3057\u3066\u518d\u5ea6\u8a66\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>Xserver\u5b9b\u306e\u30e1\u30fc\u30eb\u304c\u53d7\u4fe1\u3067\u304d\u306a\u3044\u539f\u56e0<\/h2>\n<p>\u300c\u81ea\u793e\u5b9b\u306e\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u300d\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u9001\u4fe1\u5074\u3068\u306f\u307e\u3063\u305f\u304f\u5225\u306e\u539f\u56e0\u7fa4\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>DNS\u306e\u53cd\u6620\u5f85\u3061\u3068MX\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u4e0d\u5099<\/h3>\n<p>\u30b5\u30fc\u30d0\u30fc\u79fb\u8ee2\u3084\u30c9\u30e1\u30a4\u30f3\u79fb\u7ba1\u306e\u76f4\u5f8c\u306b\u767a\u751f\u3057\u3084\u3059\u3044\u306e\u304c\u3053\u306e\u30b1\u30fc\u30b9\u3067\u3059\u3002\u30cd\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u306e\u5909\u66f4\u304c\u5168\u4e16\u754c\u306eDNS\u306b\u53cd\u6620\u3055\u308c\u308b\u307e\u3067\u306b\u306f\u6642\u9593\u304c\u304b\u304b\u308a\u3001\u305d\u306e\u9593\u306f\u65e7\u30b5\u30fc\u30d0\u30fc\u3068\u65b0\u30b5\u30fc\u30d0\u30fc\u306e\u3069\u3061\u3089\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304f\u304b\u304c\u5b89\u5b9a\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>\u79fb\u8ee2\u76f4\u5f8c\u3067\u3042\u308c\u3070\u3001\u307e\u305a\u53cd\u6620\u5b8c\u4e86\u3092\u5f85\u3061\u3001\u65e7\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u3082\u4e26\u884c\u3057\u3066\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6570\u65e5\u7d4c\u3063\u3066\u3082\u89e3\u6c7a\u3057\u306a\u3044\u5834\u5408\u306f\u3001DNS\u8a2d\u5b9a\u753b\u9762\u3067MX\u30ec\u30b3\u30fc\u30c9\u304cXserver\u6307\u5b9a\u306e\u5024\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001Google Workspace\u306a\u3069\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3092\u4f75\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001MX\u30ec\u30b3\u30fc\u30c9\u3092\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u5074\u306b\u5411\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Web\u30b5\u30a4\u30c8\u3060\u3051\u3092Xserver\u3067\u904b\u7528\u3057\u3066\u3044\u308b\u3064\u3082\u308a\u3067\u3082\u3001MX\u30ec\u30b3\u30fc\u30c9\u304cXserver\u3092\u6307\u3057\u305f\u307e\u307e\u3060\u3068\u3001\u30e1\u30fc\u30eb\u304cXserver\u5074\u306e\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u914d\u9001\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306e\u5bb9\u91cf\u30aa\u30fc\u30d0\u30fc<\/h3>\n<p>Xserver\u306e\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u5bb9\u91cf\u306f\u3001\u30e1\u30fc\u30eb\u30a2\u30ab\u30a6\u30f3\u30c8\u3054\u3068\u306b1\u301c20,000MB\u306e\u7bc4\u56f2\u3067\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u521d\u671f\u5024\u306e\u307e\u307e\u9577\u5e74\u904b\u7528\u3057\u3066\u3044\u308b\u3068\u3001\u4e0a\u9650\u306b\u9054\u3057\u3066\u65b0\u898f\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u3067\u304d\u306a\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u72b6\u614b\u3067\u306f\u9001\u4fe1\u8005\u5074\u306b\u5bb9\u91cf\u8d85\u904e\u306e\u30a8\u30e9\u30fc\u304c\u8fd4\u308b\u305f\u3081\u3001\u300c\u9001\u3063\u305f\u306e\u306b\u5c4a\u304b\u306a\u3044\u300d\u3068\u8a00\u308f\u308c\u308b\u5178\u578b\u7684\u306a\u539f\u56e0\u306b\u306a\u308a\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u30d1\u30cd\u30eb\u306e\u300c\u30e1\u30fc\u30eb\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u5bb9\u91cf\u5909\u66f4\u300d\u304b\u3089\u4e0a\u9650\u3092\u5f15\u304d\u4e0a\u3052\u308b\u304b\u3001\u4e0d\u8981\u306a\u30e1\u30fc\u30eb\u3092\u524a\u9664\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>POP\u63a5\u7d9a\u3067\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u3057\u3066\u3044\u3066\u300c\u30b5\u30fc\u30d0\u30fc\u306b\u30e1\u30fc\u30eb\u3092\u6b8b\u3059\u300d\u8a2d\u5b9a\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u53d7\u4fe1\u6e08\u307f\u30e1\u30fc\u30eb\u304c\u30b5\u30fc\u30d0\u30fc\u4e0a\u306b\u84c4\u7a4d\u3057\u7d9a\u3051\u307e\u3059\u3002\u5b9a\u671f\u7684\u306a\u68da\u5378\u3057\u3092\u904b\u7528\u30eb\u30fc\u30eb\u306b\u7d44\u307f\u8fbc\u3093\u3067\u304a\u304f\u3068\u5b89\u5168\u3067\u3059\u3002<\/p>\n<h3>\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a3\u30eb\u30bf\u3068\u632f\u308a\u5206\u3051\u8a2d\u5b9a<\/h3>\n<p>Xserver\u3067\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a3\u30eb\u30bf\u3084\u632f\u308a\u5206\u3051\u8a2d\u5b9a\u304c\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u904e\u53bb\u306b\u8a2d\u5b9a\u3057\u305f\u6761\u4ef6\u304c\u610f\u56f3\u305b\u305a\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u3092\u5f3e\u3044\u3066\u3044\u308b\u30b1\u30fc\u30b9\u306f\u3001\u5b9f\u52d9\u4e0a\u304b\u306a\u308a\u591a\u304f\u898b\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u78ba\u8a8d\u3059\u3079\u304d\u30dd\u30a4\u30f3\u30c8\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a3\u30eb\u30bf\u306e\u51e6\u7406\u65b9\u6cd5\u304c\u300c\u524a\u9664\u300d\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u304b\uff08\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3078\u79fb\u52d5\u300d\u304c\u5b89\u5168\uff09<\/li>\n<li>\u7279\u5b9a\u306e\u5dee\u51fa\u4eba\u3084\u30c9\u30e1\u30a4\u30f3\u3092\u62d2\u5426\u30ea\u30b9\u30c8\u306b\u5165\u308c\u3066\u3044\u306a\u3044\u304b<\/li>\n<li>\u632f\u308a\u5206\u3051\u30eb\u30fc\u30eb\u304c\u7279\u5b9a\u306e\u30d5\u30a9\u30eb\u30c0\u3078\u30e1\u30fc\u30eb\u3092\u9000\u907f\u3055\u305b\u3066\u3044\u306a\u3044\u304b<\/li>\n<li>\u8ee2\u9001\u8a2d\u5b9a\u304c\u6709\u52b9\u3067\u3001\u8ee2\u9001\u5148\u3060\u3051\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u3044\u3066\u3044\u306a\u3044\u304b<\/li>\n<\/ul>\n<\/div>\n<h3>\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u5074\u306e\u8a2d\u5b9a\u30df\u30b9<\/h3>\n<p>WEB\u30e1\u30fc\u30eb\u3067\u306f\u53d7\u4fe1\u3067\u304d\u3066\u3044\u308b\u306e\u306b\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u3067\u53d7\u4fe1\u3067\u304d\u306a\u3044\u5834\u5408\u3001\u539f\u56e0\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306b\u3042\u308a\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u540d\u3001\u30dd\u30fc\u30c8\u756a\u53f7\u3001SSL\u8a2d\u5b9a\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u3044\u305a\u308c\u304b\u304c\u53e4\u3044\u60c5\u5831\u306e\u307e\u307e\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u30b5\u30fc\u30d0\u30fc\u30d1\u30cd\u30eb\u306e\u30ed\u30b0\u30a4\u30f3\u30d1\u30b9\u30ef\u30fc\u30c9\u3068\u306f\u5225\u7269\u3067\u3042\u308b\u70b9\u306b\u3082\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h2>Xserver\u306e\u30e1\u30eb\u30de\u30ac\u30fb\u4e00\u6589\u914d\u4fe1\u3067\u8d77\u304d\u3084\u3059\u3044\u843d\u3068\u3057\u7a74<\/h2>\n<p>\u3053\u3053\u304b\u3089\u306f\u3001\u4e00\u822c\u7684\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u8a18\u4e8b\u304c\u3042\u307e\u308a\u89e6\u308c\u306a\u3044\u9818\u57df\u3067\u3059\u3002<strong>Xserver\u3067\u30e1\u30eb\u30de\u30ac\u3084\u4e00\u6589\u914d\u4fe1\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u65e5\u5e38\u306e\u30e1\u30fc\u30eb\u4ee5\u4e0a\u306b\u4e0d\u9054\u30ea\u30b9\u30af\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<\/strong><\/p>\n<h3>\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u6a5f\u80fd\u306b\u306f\u767b\u9332\u6570\u306e\u4e0a\u9650\u304c\u3042\u308b<\/h3>\n<p>Xserver\u306b\u306f\u30b5\u30fc\u30d0\u30fc\u30d1\u30cd\u30eb\u304b\u3089\u5229\u7528\u3067\u304d\u308b\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u6a5f\u80fd\u304c\u5099\u308f\u3063\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u306f\u660e\u78ba\u306a\u5236\u7d04\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<thead>\n<tr>\n<th>\u9805\u76ee<\/th>\n<th>\u4ed5\u69d8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4f5c\u6210\u3067\u304d\u308b\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u6570<\/td>\n<td>\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9\u30d7\u30e9\u30f310\u4ef6\uff0f\u30d7\u30ec\u30df\u30a2\u30e0\u30d7\u30e9\u30f315\u4ef6\uff0f\u30d3\u30b8\u30cd\u30b9\u30d7\u30e9\u30f320\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>1\u3064\u306e\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u306b\u767b\u9332\u3067\u304d\u308b\u30a2\u30c9\u30ec\u30b9\u6570<\/td>\n<td>1,000\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>\u9001\u4fe1\u901a\u6570\u306e\u30ab\u30a6\u30f3\u30c8\u65b9\u6cd5<\/td>\n<td>10\u4eba\u306e\u30e6\u30fc\u30b6\u30fc\u306b1\u901a\u914d\u4fe1\u3057\u305f\u5834\u5408\u306f10\u901a\u3068\u3057\u3066\u30ab\u30a6\u30f3\u30c8<\/td>\n<\/tr>\n<tr>\n<td>\u8a66\u7528\u671f\u9593\u4e2d\u306e\u5229\u7528<\/td>\n<td>\u4e0d\u53ef<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u53c2\u7167\uff1a<a href=\"https:\/\/www.xserver.ne.jp\/manual\/man_mail_mailmagazine.php\" target=\"_blank\" rel=\"noopener\">Xserver\uff0f\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u306b\u3064\u3044\u3066<\/a><\/p>\n<p>\u6ce8\u76ee\u3059\u3079\u304d\u306f<strong>1\u3064\u306e\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u3042\u305f\u308a1,000\u4ef6\u3068\u3044\u3046\u767b\u9332\u4e0a\u9650<\/strong>\u3067\u3059\u3002\u30ea\u30b9\u30c8\u304c3,000\u4ef6\u306b\u6210\u9577\u3057\u305f\u6642\u70b9\u3067\u30013\u3064\u306e\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u306b\u5206\u5272\u3057\u3066\u7ba1\u7406\u3059\u308b\u5fc5\u8981\u304c\u751f\u3058\u307e\u3059\u3002\u914d\u4fe1\u306e\u305f\u3073\u306b3\u56de\u540c\u3058\u4f5c\u696d\u3092\u7e70\u308a\u8fd4\u3057\u3001\u914d\u4fe1\u505c\u6b62\u306e\u53cd\u6620\u30823\u7b87\u6240\u3067\u884c\u3046\u3053\u3068\u306b\u306a\u308a\u3001\u904b\u7528\u30df\u30b9\u304c\u8d77\u304d\u3084\u3059\u3044\u69cb\u9020\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u9001\u4fe1\u901a\u6570\u306f\u300c\u5b9b\u5148\u306e\u6570\u300d\u3067\u30ab\u30a6\u30f3\u30c8\u3055\u308c\u308b<\/h3>\n<p>\u3082\u3046\u3072\u3068\u3064\u898b\u843d\u3068\u3057\u3084\u3059\u3044\u306e\u304c\u3001\u9001\u4fe1\u901a\u6570\u306e\u30ab\u30a6\u30f3\u30c8\u65b9\u6cd5\u3067\u3059\u3002\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u306f\u300110\u4eba\u306e\u30e6\u30fc\u30b6\u30fc\u306b1\u901a\u306e\u30e1\u30fc\u30eb\u3092\u914d\u4fe1\u3057\u305f\u5834\u5408\u306f10\u901a\u3068\u3057\u3066\u30ab\u30a6\u30f3\u30c8\u3059\u308b\u3068\u660e\u8a18\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u30921\u6642\u95931,500\u901a\u30fb1\u65e515,000\u901a\u306e\u76ee\u5b89\u3068\u91cd\u306d\u5408\u308f\u305b\u308b\u3068\u3001\u73fe\u5b9f\u7684\u306a\u4e0a\u9650\u304c\u898b\u3048\u3066\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\uff1a\u30ea\u30b9\u30c83,000\u4ef6\u3078\u30e1\u30eb\u30de\u30ac\u3092\u914d\u4fe1\u3059\u308b\u5834\u5408<\/strong><\/p>\n<div class=\"list04\">\n<ul>\n<li>1\u56de\u306e\u914d\u4fe1\u3067\u6d88\u8cbb\u3059\u308b\u901a\u6570\uff1a3,000\u901a<\/li>\n<li>1\u65e5\u306e\u76ee\u5b8915,000\u901a\u306b\u5bfe\u3059\u308b\u6d88\u8cbb\u7387\uff1a20%<\/li>\n<li>1\u6642\u9593\u306e\u76ee\u5b891,500\u901a\u306b\u5bfe\u3057\u3066\uff1a1\u56de\u306e\u914d\u4fe1\u3060\u3051\u3067\u76ee\u5b89\u306e2\u500d\u306b\u5230\u9054<\/li>\n<\/ul>\n<\/div>\n<p>\u3064\u307e\u308a\u3001<strong>3,000\u4ef6\u306e\u30ea\u30b9\u30c8\u306b1\u901a\u914d\u4fe1\u3059\u308b\u3060\u3051\u3067\u30011\u6642\u9593\u3042\u305f\u308a\u306e\u76ee\u5b89\u3092\u8d85\u904e\u3059\u308b\u8a08\u7b97<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u306b\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u306e\u81ea\u52d5\u8fd4\u4fe1\u3001\u6ce8\u6587\u78ba\u8a8d\u30e1\u30fc\u30eb\u3001\u793e\u5185\u306e\u901a\u5e38\u696d\u52d9\u30e1\u30fc\u30eb\u304c\u52a0\u308f\u308b\u3053\u3068\u3092\u8003\u3048\u308c\u3070\u3001\u4f59\u88d5\u306f\u307b\u3068\u3093\u3069\u6b8b\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3055\u3089\u306b\u524d\u8ff0\u306e\u3068\u304a\u308a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u65ad\u3055\u308c\u308b\u914d\u4fe1\u306b\u3064\u3044\u3066\u306f\u3001\u76ee\u5b89\u306e\u7bc4\u56f2\u5185\u3067\u3042\u3063\u3066\u3082\u5236\u9650\u306e\u5bfe\u8c61\u3068\u306a\u308a\u307e\u3059\u3002\u300c\u307e\u3060\u4e0a\u9650\u306b\u9054\u3057\u3066\u3044\u306a\u3044\u304b\u3089\u5927\u4e08\u592b\u300d\u3068\u3044\u3046\u5224\u65ad\u306f\u6210\u308a\u7acb\u3061\u307e\u305b\u3093\u3002<\/p>\n<h3>\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u306e\u653e\u7f6e\u304c\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u524a\u308b<\/h3>\n<p>Xserver\u306e\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u6a5f\u80fd\u306b\u306f\u914d\u4fe1\u30a8\u30e9\u30fc\u306e\u81ea\u52d5\u524a\u9664\u6a5f\u80fd\u304c\u3042\u308a\u3001\u521d\u671f\u8a2d\u5b9a\u3067\u306f\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u306f\u3001\u3053\u306e\u6a5f\u80fd\u3092\u7121\u52b9\u306b\u3059\u308b\u3068\u914d\u4fe1\u3067\u304d\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u5b9b\u306b\u9001\u4fe1\u3092\u8a66\u307f\u308b\u983b\u5ea6\u304c\u5897\u52a0\u3057\u3001\u4ed6\u306e\u5229\u7528\u8005\u306b\u3082\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308b\u3068\u660e\u8a18\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u7121\u52b9\u306a\u30a2\u30c9\u30ec\u30b9\u3078\u306e\u914d\u4fe1\u3092\u7e70\u308a\u8fd4\u3059\u3053\u3068\u306f\u3001\u53d7\u4fe1\u5074\u304b\u3089\u898b\u308c\u3070\u300c\u30ea\u30b9\u30c8\u7ba1\u7406\u3092\u3057\u3066\u3044\u306a\u3044\u9001\u4fe1\u8005\u300d\u306e\u30b7\u30b0\u30ca\u30eb\u3067\u3059\u3002\u3053\u308c\u304c\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u4f4e\u4e0b\u306b\u3064\u306a\u304c\u308a\u3001\u6700\u7d42\u7684\u306b\u306f\u6709\u52b9\u306a\u30a2\u30c9\u30ec\u30b9\u3078\u306e\u5230\u9054\u7387\u307e\u3067\u62bc\u3057\u4e0b\u3052\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3067\u300c\u306a\u308a\u3059\u307e\u3057\u30e1\u30fc\u30eb\u5bfe\u7b56\u300d\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u304b\u3089\u306e\u914d\u4fe1\u3092\u53d7\u4fe1\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u3042\u308b\u70b9\u3082\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u6ce8\u8a18\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30ad\u30e3\u30ea\u30a2\u30e1\u30fc\u30eb\u3092\u591a\u304f\u542b\u3080\u30ea\u30b9\u30c8\u3092\u6271\u3046\u5834\u5408\u306f\u3001\u4e8b\u524d\u306e\u53d7\u4fe1\u8a31\u53ef\u306e\u6848\u5185\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/no-delivery\/reach\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2025\/08\/WEBCAS\u306e\u30b3\u30d4\u30fc\u306e\u30b3\u30d4\u30fc-2.png\" alt=\"\u30e1\u30eb\u30de\u30ac\u304c\u300c\u5c4a\u304b\u306a\u3044\u300d\u300c\u8aad\u307e\u308c\u306a\u3044\u300d\u539f\u56e0\u3092\u5fb9\u5e95\u89e3\u8aac\uff01\u5c02\u9580\u5bb6\u304c\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u30e1\u30eb\u30de\u30ac\u304c\u300c\u5c4a\u304b\u306a\u3044\u300d\u300c\u8aad\u307e\u308c\u306a\u3044\u300d\u539f\u56e0\u3092\u5fb9\u5e95\u89e3\u8aac\uff01\u5c02\u9580\u5bb6\u304c\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/div>\n    <div class=\"blogcard_excerpt\">\u300c\u305b\u3063\u304b\u304f\u9001\u3063\u305f\u30e1\u30eb\u30de\u30ac\u304c\u3001\u306a\u305c\u304b\u958b\u5c01\u7387\u304c\u4f4e\u3044\u2026\u300d \u300c\u304a\u5ba2\u69d8\u306b\u5c4a\u3051\u305f\u3044\u60c5\u5831\u304c\u3001\u306a\u304b\u306a\u304b\u8aad\u307e\u308c\u306a\u3044\u2026\u300d \u3053\u3093\u306a\u304a\u60a9\u307f\u3001\u3042\u306a\u305f\u3082\u62b1\u3048\u3066\u3044\u307e\u305b\u3093\u304b\uff1f \u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u3068\u304d\u306e\u5bfe\u51e6\u6cd5<\/h2>\n<p>\u539f\u56e0\u304c\u7279\u5b9a\u3067\u304d\u305f\u3089\u3001\u5bfe\u51e6\u306b\u79fb\u308a\u307e\u3059\u3002\u5373\u52b9\u6027\u306e\u3042\u308b\u5fdc\u6025\u51e6\u7f6e\u304b\u3089\u3001\u518d\u767a\u3092\u9632\u3050\u6839\u672c\u5bfe\u7b56\u307e\u3067\u9806\u306b\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u63b2\u8f09\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u3066\u89e3\u9664\u7533\u8acb\u3092\u51fa\u3059<\/h3>\n<p><code>550 5.7.1<\/code> \u306e\u30a8\u30e9\u30fc\u304c\u8fd4\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u307e\u305a\u81ea\u5206\u3067\u63b2\u8f09\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002MXToolbox\u3067\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\u3057\u3001\u3069\u306e\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u7279\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u305d\u306e\u3046\u3048\u3067\u3001Xserver\u306e\u30b5\u30dd\u30fc\u30c8\u3078\u6b21\u306e\u60c5\u5831\u3092\u6dfb\u3048\u3066\u554f\u3044\u5408\u308f\u305b\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u3053\u3068<\/li>\n<li>\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u30ea\u30b9\u30c8\u306e\u5177\u4f53\u7684\u306a\u540d\u79f0<\/li>\n<li>\u5b9f\u969b\u306b\u8fd4\u3063\u3066\u304d\u305f\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u5168\u6587<\/li>\n<\/ul>\n<\/div>\n<p>\u305f\u3060\u3057\u3001\u3053\u306e\u65b9\u6cd5\u306b\u306f\u69cb\u9020\u7684\u306a\u9650\u754c\u304c\u3042\u308a\u307e\u3059\u3002<strong>\u89e3\u9664\u306e\u624b\u7d9a\u304d\u3068\u53cd\u6620\u306b\u306f\u6642\u9593\u3092\u8981\u3059\u308b\u3046\u3048\u3001\u540c\u3058IP\u3092\u5171\u6709\u3059\u308b\u4ed6\u306e\u5229\u7528\u8005\u304c\u518d\u3073\u30b9\u30d1\u30e0\u884c\u70ba\u3092\u884c\u3048\u3070\u3001\u518d\u63b2\u8f09\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u6b8b\u308b<\/strong>\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u89e3\u9664\u7533\u8acb\u306f\u5fdc\u6025\u51e6\u7f6e\u3067\u3042\u3063\u3066\u3001\u518d\u767a\u9632\u6b62\u7b56\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3059\u308b<\/h3>\n<p>SPF\u30fbDKIM\u30fbDMARC\u306f\u3001\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u3053\u3068\u81ea\u4f53\u3088\u308a\u3082\u300c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u300d\u304c\u91cd\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u9806\u3067\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"list04\">\n<ol>\n<li>SPF\u30ec\u30b3\u30fc\u30c9\u306b\u3001\u5b9f\u969b\u306b\u4f7f\u7528\u3057\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u9001\u4fe1\u5143\uff08Xserver\u3001MA\u30c4\u30fc\u30eb\u3001\u30d5\u30a9\u30fc\u30e0\u30b5\u30fc\u30d3\u30b9\u306a\u3069\uff09\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b<\/li>\n<li>DKIM\u306e\u7f72\u540d\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u304a\u308a\u3001\u53d7\u4fe1\u5074\u3067\u691c\u8a3c\u306b\u6210\u529f\u3057\u3066\u3044\u308b\u304b<\/li>\n<li>DMARC\u30ec\u30b3\u30fc\u30c9\u3092\u516c\u958b\u3057\u3001\u307e\u305a\u306fp=none\u3067\u30ec\u30dd\u30fc\u30c8\u3092\u53ce\u96c6\u3057\u3066\u3044\u308b\u304b<\/li>\n<li>\u30ec\u30dd\u30fc\u30c8\u3092\u3082\u3068\u306b\u3001\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u3044\u308b\u9001\u4fe1\u7d4c\u8def\u304c\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3057\u3066\u3044\u308b\u304b<\/li>\n<\/ol>\n<\/div>\n<p>DMARC\u3092\u3044\u304d\u306a\u308ap=reject\u306b\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u8a8d\u8a3c\u8a2d\u5b9a\u304c\u6f0f\u308c\u3066\u3044\u308b\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u306e\u30e1\u30fc\u30eb\u304c\u3059\u3079\u3066\u30d6\u30ed\u30c3\u30af\u3055\u308c\u307e\u3059\u3002\u6bb5\u968e\u7684\u306b\u5f15\u304d\u4e0a\u3052\u308b\u306e\u304c\u5b9f\u52d9\u4e0a\u306e\u9244\u5247\u3067\u3059\u3002<\/p>\n<h3>\u914d\u4fe1\u30ea\u30b9\u30c8\u3092\u6574\u7406\u3057\u3066\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u3092\u4e0b\u3052\u308b<\/h3>\n<p>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u306f\u3001\u53d7\u4fe1\u8005\u304c\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u3057\u3066\u5831\u544a\u300d\u3057\u305f\u5272\u5408\u3067\u6c7a\u307e\u308a\u307e\u3059\u3002\u6570\u5024\u3092\u4e0b\u3052\u308b\u305f\u3081\u306b\u6709\u52b9\u306a\u306e\u306f\u3001\u6280\u8853\u5bfe\u7b56\u3067\u306f\u306a\u304f\u30ea\u30b9\u30c8\u904b\u7528\u306e\u898b\u76f4\u3057\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u30aa\u30d7\u30c8\u30a4\u30f3\uff08\u540c\u610f\uff09\u3092\u53d6\u5f97\u3057\u305f\u30a2\u30c9\u30ec\u30b9\u306b\u306e\u307f\u914d\u4fe1\u3059\u308b<\/li>\n<li>\u9577\u671f\u9593\u53cd\u5fdc\u306e\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u3092\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u5916\u3059<\/li>\n<li>\u30a8\u30e9\u30fc\u304c\u7d9a\u304f\u30a2\u30c9\u30ec\u30b9\u3092\u901f\u3084\u304b\u306b\u30ea\u30b9\u30c8\u304b\u3089\u9664\u5916\u3059\u308b<\/li>\n<li>\u914d\u4fe1\u89e3\u9664\u306e\u5c0e\u7dda\u3092\u308f\u304b\u308a\u3084\u3059\u3044\u4f4d\u7f6e\u306b\u8a2d\u7f6e\u3059\u308b<\/li>\n<li>\u914d\u4fe1\u983b\u5ea6\u3092\u53d7\u4fe1\u8005\u306e\u671f\u5f85\u5024\u306b\u5408\u308f\u305b\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u300c\u89e3\u9664\u3057\u3065\u3089\u3044\u30e1\u30eb\u30de\u30ac\u300d\u306f\u3001\u89e3\u9664\u306e\u4ee3\u308f\u308a\u306b\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u3092\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<strong>\u89e3\u9664\u306e\u3057\u3084\u3059\u3055\u306f\u3001\u5230\u9054\u7387\u3092\u5b88\u308b\u305f\u3081\u306e\u6295\u8cc7<\/strong>\u3068\u6349\u3048\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n<h3>\u9001\u4fe1\u7d4c\u8def\u305d\u306e\u3082\u306e\u3092\u5206\u96e2\u3059\u308b<\/h3>\n<p>\u3053\u3053\u307e\u3067\u306e\u5bfe\u7b56\u306f\u3001\u3044\u305a\u308c\u3082\u6709\u52b9\u3067\u3059\u3002\u305f\u3060\u3057\u5171\u7528IP\u3092\u4f7f\u3044\u7d9a\u3051\u308b\u9650\u308a\u3001\u4ed6\u306e\u5229\u7528\u8005\u306e\u5f71\u97ff\u3092\u5b8c\u5168\u306b\u907f\u3051\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u9001\u4fe1\u6570\u306e\u76ee\u5b89\u3092\u5927\u304d\u304f\u8d85\u3048\u308b\u914d\u4fe1\u306f\u3001\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u304c\u672c\u6765\u60f3\u5b9a\u3057\u3066\u3044\u308b\u7528\u9014\u304b\u3089\u5916\u308c\u307e\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u6709\u52b9\u306a\u306e\u304c\u3001<strong>Web\u30b5\u30a4\u30c8\u306e\u904b\u7528\u306fXserver\u306e\u307e\u307e\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u7d4c\u8def\u3060\u3051\u3092\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u5206\u96e2\u3059\u308b<\/strong>\u3068\u3044\u3046\u8003\u3048\u65b9\u3067\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u3092\u79fb\u8ee2\u3059\u308b\u5fc5\u8981\u306f\u306a\u304f\u3001\u9001\u4fe1\u306e\u51fa\u53e3\u3092\u5dee\u3057\u66ff\u3048\u308b\u3053\u3068\u3067\u3001\u5171\u7528IP\u306e\u30ea\u30b9\u30af\u3068\u9001\u4fe1\u6570\u306e\u5236\u7d04\u306e\u4e21\u65b9\u306b\u5bfe\u51e6\u3067\u304d\u307e\u3059\u3002\u5bfe\u7b56\u3054\u3068\u306e\u7279\u6027\u3092\u6574\u7406\u3059\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<thead>\n<tr>\n<th>\u5bfe\u7b56<\/th>\n<th>\u5373\u52b9\u6027<\/th>\n<th>\u8ffd\u52a0\u30b3\u30b9\u30c8<\/th>\n<th>\u518d\u767a\u30ea\u30b9\u30af<\/th>\n<th>\u5927\u91cf\u914d\u4fe1\u3078\u306e\u5bfe\u5fdc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u89e3\u9664\u7533\u8acb<\/td>\n<td>\u4f4e\uff08\u6642\u9593\u3092\u8981\u3059\u308b\uff09<\/td>\n<td>\u306a\u3057<\/td>\n<td>\u9ad8\uff08\u4ed6\u5229\u7528\u8005\u306e\u5f71\u97ff\u304c\u6b8b\u308b\uff09<\/td>\n<td>\u4e0d\u53ef<\/td>\n<\/tr>\n<tr>\n<td>SPF\/DKIM\/DMARC\u306e\u8a2d\u5b9a<\/td>\n<td>\u4e2d<\/td>\n<td>\u306a\u3057<\/td>\n<td>\u4e2d\uff08IP\u8d77\u56e0\u306e\u554f\u984c\u306f\u6b8b\u308b\uff09<\/td>\n<td>\u4e0d\u53ef<\/td>\n<\/tr>\n<tr>\n<td>\u914d\u4fe1\u30ea\u30b9\u30c8\u306e\u6574\u7406<\/td>\n<td>\u4e2d<\/td>\n<td>\u306a\u3057<\/td>\n<td>\u4f4e<\/td>\n<td>\u4e0d\u53ef<\/td>\n<\/tr>\n<tr>\n<td>\u9001\u4fe1\u7d4c\u8def\u3092\u5916\u90e8\u306e\u914d\u4fe1\u57fa\u76e4\u306b\u5206\u96e2<\/td>\n<td>\u9ad8\uff08\u6700\u77ed\u3067\u5373\u65e5\u3001\u8a2d\u5b9a\u5185\u5bb9\u306b\u3088\u308a\u5909\u52d5\uff09<\/td>\n<td>\u6708\u984d\u8cbb\u7528\u304c\u767a\u751f<\/td>\n<td>\u4f4e<\/td>\n<td>\u53ef\u80fd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u30b3\u30b9\u30c8\u306f\u767a\u751f\u3057\u307e\u3059\u3002<strong>\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u3053\u3068\u306b\u3088\u308b\u5546\u8ac7\u306e\u505c\u6ede\u3084\u554f\u3044\u5408\u308f\u305b\u5bfe\u5fdc\u306e\u5de5\u6570\u3068\u6bd4\u8f03\u3057\u305f\u3046\u3048\u3067\u3001\u5224\u65ad\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/strong><\/p>\n<h2>Xserver\u304b\u3089\u78ba\u5b9f\u306b\u30e1\u30fc\u30eb\u3092\u5c4a\u3051\u308b\u306a\u3089\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b<\/h2>\n<p>Xserver\u306f\u56fd\u5185\u3067\u3082\u6709\u6570\u306e\u30b7\u30a7\u30a2\u3092\u6301\u3064\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u3001Web\u30b5\u30a4\u30c8\u306e\u8868\u793a\u901f\u5ea6\u3084\u5b89\u5b9a\u6027\u3001WordPress\u306e\u904b\u7528\u74b0\u5883\u306b\u3064\u3044\u3066\u306f\u9ad8\u3044\u8a55\u4fa1\u3092\u5f97\u3066\u3044\u307e\u3059\u3002\u30b5\u30a4\u30c8\u904b\u7528\u306e\u57fa\u76e4\u3068\u3057\u3066\u4e57\u308a\u63db\u3048\u308b\u7406\u7531\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u4e00\u65b9\u3067\u3001\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u306f\u591a\u6570\u306e\u5229\u7528\u8005\u3067\u30ea\u30bd\u30fc\u30b9\u3092\u5171\u6709\u3059\u308b\u8a2d\u8a08\u3067\u3042\u308a\u3001\u30e1\u30fc\u30eb\u306e\u5927\u91cf\u914d\u4fe1\u306f\u3082\u3068\u3082\u3068\u60f3\u5b9a\u3055\u308c\u3066\u3044\u308b\u4f7f\u3044\u65b9\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002<strong>\u30b5\u30a4\u30c8\u306fXserver\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u306f\u5c02\u7528\u306e\u57fa\u76e4<\/strong>\u3068\u3044\u3046\u3088\u3046\u306b\u3001\u7528\u9014\u306b\u5408\u308f\u305b\u3066\u4f7f\u3044\u5206\u3051\u308b\u306e\u304c\u73fe\u5b9f\u7684\u306a\u89e3\u6c7a\u7b56\u3067\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8<\/h3>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u30e1\u30fc\u30eb\u3092\u300c\u5c4a\u3051\u308b\u300d\u3053\u3068\u306b\u7279\u5316\u3057\u3066\u8a2d\u8a08\u3055\u308c\u305f\u57fa\u76e4\u3067\u3059\u3002\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u914d\u4fe1\u3067\u306f\u5b9f\u73fe\u3067\u304d\u306a\u3044\u8981\u7d20\u304c\u3001\u6a19\u6e96\u3067\u5099\u308f\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u7d99\u7d9a\u7684\u306a\u7ba1\u7406<\/strong>\uff1a\u4ed6\u306e\u5229\u7528\u8005\u306e\u30b9\u30d1\u30e0\u884c\u70ba\u306b\u81ea\u793e\u306e\u5230\u9054\u7387\u304c\u5dfb\u304d\u8fbc\u307e\u308c\u306a\u3044<\/li>\n<li><strong>\u9001\u4fe1\u6570\u306e\u5236\u7d04\u304b\u3089\u306e\u89e3\u653e<\/strong>\uff1a\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u76ee\u5b89\u3092\u6c17\u306b\u305b\u305a\u3001\u5fc5\u8981\u306a\u901a\u6570\u3092\u914d\u4fe1\u3067\u304d\u308b<\/li>\n<li><strong>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3078\u306e\u6a19\u6e96\u5bfe\u5fdc<\/strong>\uff1aSPF\/DKIM\/DMARC\u306b\u5bfe\u5fdc\u3057\u305f\u914d\u4fe1\u57fa\u76e4\u3067\u3001\u306a\u308a\u3059\u307e\u3057\u5224\u5b9a\u3092\u56de\u907f<\/li>\n<li><strong>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u81ea\u52d5\u51e6\u7406<\/strong>\uff1a\u30d0\u30a6\u30f3\u30b9\u3092\u81ea\u52d5\u3067\u51e6\u7406\u3057\u3001\u30ea\u30b9\u30c8\u306e\u54c1\u8cea\u3092\u4fdd\u3064<\/li>\n<li><strong>\u914d\u4fe1\u30ed\u30b0\u306e\u53ef\u8996\u5316<\/strong>\uff1a\u3069\u306e\u30e1\u30fc\u30eb\u304c\u3044\u3064\u3069\u3046\u306a\u3063\u305f\u304b\u3092\u8ffd\u8de1\u3067\u304d\u3001\u539f\u56e0\u8abf\u67fb\u304c\u77ed\u6642\u9593\u3067\u6e08\u3080<\/li>\n<\/ul>\n<\/div>\n<p>\u91cd\u8981\u306a\u306e\u306f\u3001<strong>\u3053\u308c\u3089\u3092\u81ea\u793e\u3067\u5b9f\u73fe\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u5c02\u7528\u306e\u30a4\u30f3\u30d5\u30e9\u69cb\u7bc9\u3068\u7d99\u7d9a\u7684\u306a\u904b\u7528\u5de5\u6570\u304c\u5fc5\u8981\u306b\u306a\u308b<\/strong>\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u305d\u306e\u904b\u7528\u3092\u5c02\u9580\u4e8b\u696d\u8005\u306b\u59d4\u306d\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastengine\u300d<\/h3>\n<p><a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2025\/10\/blastengine.jpg\" alt=\"blastengine\u306e\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"1303\" height=\"590\" class=\"alignnone wp-image-19575 size-full\" \/><\/a><\/p>\n<p>blastengine\uff08\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\uff09\u306f\u3001\u65e2\u5b58\u306e\u30b7\u30b9\u30c6\u30e0\u3068SMTP\u30ea\u30ec\u30fc\u307e\u305f\u306fAPI\u3067\u9023\u643a\u3059\u308b\u3053\u3068\u3067\u3001\u4e00\u6589\u914d\u4fe1\u3082\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u3082\u540c\u3058\u57fa\u76e4\u304b\u3089\u9001\u4fe1\u3067\u304d\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002Xserver\u4e0a\u3067\u52d5\u4f5c\u3057\u3066\u3044\u308bWordPress\u3084\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u306e\u9001\u4fe1\u7d4c\u8def\u306f\u3001SMTP\u8a2d\u5b9a\u306e\u5909\u66f4\u307e\u305f\u306fAPI\u9023\u643a\u306b\u3088\u3063\u3066\u5dee\u3057\u66ff\u3048\u3089\u308c\u307e\u3059\u3002<strong>\u30b5\u30fc\u30d0\u30fc\u3092\u79fb\u8ee2\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u5171\u7528IP\u306e\u30ea\u30b9\u30af\u3068\u9001\u4fe1\u6570\u306e\u5236\u7d04\u306b\u5bfe\u51e6\u3067\u304d\u308b<\/strong>\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>SMTP\u30ea\u30ec\u30fc<\/strong>\uff1a\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u3060\u3051\u3067\u3001\u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u306e\u6539\u4fee\u306a\u3057\u306b\u9001\u4fe1\u7d4c\u8def\u3092\u5207\u308a\u66ff\u3048\u3089\u308c\u308b<\/li>\n<li><strong>API\u9023\u643a\uff08RESTful API\uff09<\/strong>\uff1a\u4f1a\u54e1\u767b\u9332\u5b8c\u4e86\u30e1\u30fc\u30eb\u3084\u6ce8\u6587\u901a\u77e5\u306a\u3069\u3001\u9001\u4fe1\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u5236\u5fa1\u3057\u305f\u3044\u7528\u9014\u306b\u5bfe\u5fdc<\/li>\n<li><strong>\u30ad\u30e3\u30ea\u30a2\u30fbISP\u3078\u306e\u500b\u5225\u9001\u4fe1\u30ed\u30b8\u30c3\u30af<\/strong>\uff1a\u56fd\u5185\u306e\u4e3b\u8981\u30d7\u30ed\u30d0\u30a4\u30c0\u30fb\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u306e\u7279\u6027\u306b\u5408\u308f\u305b\u3066\u914d\u4fe1\u3057\u300199%\u4ee5\u4e0a\u306e\u9ad8\u3044\u5230\u9054\u7387\u3092\u5b9f\u73fe<\/li>\n<li><strong>SPF\/DKIM\/DMARC\u5bfe\u5fdc<\/strong>\uff1a\u6700\u65b0\u306e\u30e1\u30fc\u30eb\u8a8d\u8a3c\u6280\u8853\u306b\u6a19\u6e96\u5bfe\u5fdc\u3057\u3001\u306a\u308a\u3059\u307e\u3057\u5224\u5b9a\u30fb\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3092\u56de\u907f<\/li>\n<li><strong>IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u7ba1\u7406<\/strong>\uff1a\u30b5\u30fc\u30d0\u30fc\u306e\u904b\u7528\u30fb\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092blastengine\u5074\u3067\u5b9f\u65bd\u3057\u3001\u5e38\u306b\u9ad8\u3044\u9001\u4fe1\u8005\u8a55\u4fa1\u3092\u7dad\u6301<\/li>\n<li><strong>\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u81ea\u52d5\u5bfe\u5fdc<\/strong>\uff1a\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u7ba1\u7406\u3092\u81ea\u52d5\u5316\u3057\u3001\u30ea\u30b9\u30c8\u54c1\u8cea\u306e\u52a3\u5316\u3092\u9632\u3050<\/li>\n<li><strong>\u914d\u4fe1\u30ed\u30b0\u7ba1\u7406<\/strong>\uff1a\u8a73\u7d30\u306a\u914d\u4fe1\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u78ba\u8a8d\u3067\u304d\u3001\u300c\u5c4a\u3044\u3066\u3044\u306a\u3044\u300d\u306e\u539f\u56e0\u7279\u5b9a\u304c\u77ed\u6642\u9593\u3067\u6e08\u3080<\/li>\n<\/ul>\n<\/div>\n<p>\u521d\u671f\u8cbb\u7528\u306f\u7121\u6599\u3001\u6708\u984d3,000\u5186\u304b\u3089\u5229\u7528\u3067\u304d\u3001\u65e5\u672c\u8a9e\u3067\u306e\u96fb\u8a71\u30fb\u30e1\u30fc\u30eb\u306b\u3088\u308b\u30c6\u30af\u30cb\u30ab\u30eb\u30b5\u30dd\u30fc\u30c8\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<span style=\"color: #ff0000;\"><strong>Xserver\u306e\u9001\u4fe1\u6570\u306e\u76ee\u5b89\u3092\u8d85\u3048\u308b\u914d\u4fe1\u304c\u5fc5\u8981\u306a\u4f01\u696d\u3084\u3001\u5171\u7528IP\u306e\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306b\u5de6\u53f3\u3055\u308c\u305f\u304f\u306a\u3044\u4f01\u696d\u306b\u3068\u3063\u3066\u3001\u6709\u529b\u306a\u9078\u629e\u80a2\u306e\u3072\u3068\u3064<\/strong><\/span>\u3067\u3059\u3002\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5165\u529b\u306e\u307f\u3067\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3092\u958b\u59cb\u3067\u304d\u307e\u3059\u306e\u3067\u3001\u307e\u305a\u306f\u5b9f\u969b\u306e\u914d\u4fe1\u74b0\u5883\u3067\u5230\u9054\u7387\u3092\u78ba\u304b\u3081\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastengine.jp\/\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:0px 34px;font-size:25px;line-height:50px;border-color:#d46863;border-radius:5px;text-shadow:none\"> blastengine\u3092\u7121\u6599\u3067\u8a66\u3059 &gt;<\/span><\/a><\/div>\n<p>blastengine\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noopener\">https:\/\/blastengine.jp\/<\/a><\/p>\n<h3>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d<\/h3>\n<p><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/07\/blastmail-top.jpg\" alt=\"\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30ad\u30e3\u30c3\u30c1\u753b\u50cf\" width=\"1200\" height=\"630\" class=\"alignnone wp-image-15955 size-full\" \/><\/a><\/p>\n<p>\u30b7\u30b9\u30c6\u30e0\u9023\u643a\u3067\u306f\u306a\u304f\u3001\u7ba1\u7406\u753b\u9762\u304b\u3089\u30e1\u30eb\u30de\u30ac\u3092\u4f5c\u6210\u30fb\u914d\u4fe1\u3057\u305f\u3044\u3068\u3044\u3046\u5834\u5408\u306f\u3001\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u304c\u9069\u3057\u3066\u3044\u307e\u3059\u300215\u5e74\u9023\u7d9a\u3067\u5c0e\u5165\u793e\u6570\u30b7\u30a7\u30a2No.1\u3092\u7372\u5f97\u3057\u3066\u304a\u308a\u3001\u5c0e\u5165\u5b9f\u7e3e\u306f27,000\u793e\u4ee5\u4e0a\u3002\u5c02\u9580\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u76f4\u611f\u7684\u306b\u64cd\u4f5c\u3067\u304d\u308b\u7ba1\u7406\u753b\u9762\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>HTML\u30e1\u30fc\u30eb\u4f5c\u6210<\/strong>\uff1a\u30ce\u30fc\u30b3\u30fc\u30c9\u30a8\u30c7\u30a3\u30bf\u3067\u3001\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u30c7\u30b6\u30a4\u30f3\u6027\u306e\u9ad8\u3044\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3067\u304d\u308b<\/li>\n<li><strong>\u30d5\u30a3\u30eb\u30bf\u914d\u4fe1\uff08\u30bb\u30b0\u30e1\u30f3\u30c8\u914d\u4fe1\uff09<\/strong>\uff1a\u8aad\u8005\u306e\u5c5e\u6027\u3084\u767b\u9332\u60c5\u5831\u3067\u30b0\u30eb\u30fc\u30d7\u3092\u4f5c\u6210\u3057\u3001\u5bfe\u8c61\u3092\u7d5e\u3063\u3066\u914d\u4fe1\u3067\u304d\u308b<\/li>\n<li><strong>\u52b9\u679c\u6e2c\u5b9a<\/strong>\uff1a\u958b\u5c01\u7387\u30fb\u30af\u30ea\u30c3\u30af\u7387\u30fb\u30a8\u30e9\u30fc\u30ab\u30a6\u30f3\u30c8\u3092\u78ba\u8a8d\u3067\u304d\u3001\u6b21\u306e\u914d\u4fe1\u306e\u6539\u5584\u306b\u3064\u306a\u3052\u3089\u308c\u308b<\/li>\n<li><strong>\u767b\u9332\u89e3\u9664\u30d5\u30a9\u30fc\u30e0\u4f5c\u6210<\/strong>\uff1a\u914d\u4fe1\u89e3\u9664\u306e\u5c0e\u7dda\u3092\u6574\u5099\u3057\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u306e\u30ea\u30b9\u30af\u3092\u4e0b\u3052\u3089\u308c\u308b<\/li>\n<li><strong>Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc<\/strong>\uff1a\u4e3b\u8981\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u8981\u4ef6\u306b\u5bfe\u5fdc\u3057\u305f\u914d\u4fe1\u57fa\u76e4<\/li>\n<\/ul>\n<\/div>\n<p>Xserver\u306e\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u6a5f\u80fd\u306e\u3088\u3046\u306b1,000\u4ef6\u3068\u3044\u3046\u767b\u9332\u4e0a\u9650\u3092\u6c17\u306b\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u3001<strong>\u30ea\u30b9\u30c8\u306e\u6210\u9577\u306b\u5408\u308f\u305b\u3066\u540c\u3058\u904b\u7528\u306e\u307e\u307e\u62e1\u5f35\u3067\u304d\u308b<\/strong>\u70b9\u304c\u5927\u304d\u306a\u9055\u3044\u3067\u3059\u3002<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/blastmail.jp\/\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:0px 34px;font-size:25px;line-height:50px;border-color:#d46863;border-radius:5px;text-shadow:none\"> \u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u3092\u7121\u6599\u3067\u8a66\u3059 &gt;<\/span><\/a><\/div>\n<p>\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\">\u30b7\u30a7\u30a21\u4f4d\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d<\/a><\/p>\n<div class=\"blog-faq\"><h2 class=\"blog-faq__title\">FAQ<\/h2><dl class=\"blog-faq__list\">\n<dt class=\"blog-faq__question\">Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u3068\u304d\u3001\u6700\u521d\u306b\u78ba\u8a8d\u3059\u3079\u304d\u3053\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u524d\u306b\u300c\u9001\u308c\u3066\u3044\u306a\u3044\u306e\u304b\u3001\u5c4a\u3044\u3066\u3044\u306a\u3044\u306e\u304b\u300d\u3092\u5207\u308a\u5206\u3051\u3066\u304f\u3060\u3055\u3044\u3002\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u3063\u3066\u304d\u3066\u3044\u308c\u3070\u9001\u4fe1\u62d2\u5426\u3001\u8fd4\u3063\u3066\u304d\u3066\u3044\u306a\u3051\u308c\u3070\u53d7\u4fe1\u5074\u306e\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u884c\u304d\u306e\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u672c\u6587\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u304b\u3089\u539f\u56e0\u3092\u7d5e\u308a\u8fbc\u3081\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Xserver\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u6570\u306e\u4e0a\u9650\u306f\u3069\u308c\u304f\u3089\u3044\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb\u3067\u306f\u3001\u5168\u30d7\u30e9\u30f3\u5171\u901a\u30671\u6642\u9593\u3042\u305f\u308a1,500\u901a\u30011\u65e5\u3042\u305f\u308a15,000\u901a\u304c\u76ee\u5b89\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3053\u308c\u306f\u76ee\u5b89\u3067\u3042\u308a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u65ad\u3055\u308c\u308b\u914d\u4fe1\u304c\u884c\u308f\u308c\u305f\u5834\u5408\u306f\u3001\u3053\u306e\u7bc4\u56f2\u5185\u3067\u3042\u3063\u3066\u3082\u5236\u9650\u306e\u5bfe\u8c61\u3068\u306a\u308a\u307e\u3059\u3002\u6700\u65b0\u306e\u4ed5\u69d8\u306f\u5fc5\u305a\u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb\u3067\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/dd>\n<dt class=\"blog-faq__question\">Xserver\u306e\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u6a5f\u80fd\u3067\u4f55\u4ef6\u307e\u3067\u914d\u4fe1\u3067\u304d\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u516c\u5f0f\u30de\u30cb\u30e5\u30a2\u30eb\u306b\u3088\u308b\u3068\u30011\u3064\u306e\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u306b\u767b\u9332\u3067\u304d\u308b\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306f1,000\u4ef6\u3067\u3059\u3002\u4f5c\u6210\u3067\u304d\u308b\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u6570\u306f\u30d7\u30e9\u30f3\u3054\u3068\u306b\u7570\u306a\u308a\u3001\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9\u30d7\u30e9\u30f3\u306710\u4ef6\u3001\u30d7\u30ec\u30df\u30a2\u30e0\u30d7\u30e9\u30f3\u306715\u4ef6\u3001\u30d3\u30b8\u30cd\u30b9\u30d7\u30e9\u30f3\u306720\u4ef6\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u30ea\u30b9\u30c8\u304c1,000\u4ef6\u3092\u8d85\u3048\u308b\u5834\u5408\u306f\u5206\u5272\u7ba1\u7406\u304c\u5fc5\u8981\u3067\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u89e3\u9664\u7533\u8acb\u3092\u3059\u308c\u3070\u554f\u984c\u306f\u89e3\u6c7a\u3057\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u4e00\u6642\u7684\u306b\u306f\u89e3\u6c7a\u3057\u307e\u3059\u304c\u3001\u6839\u672c\u7684\u306a\u89e3\u6c7a\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u3067\u306fIP\u30a2\u30c9\u30ec\u30b9\u3092\u4ed6\u306e\u5229\u7528\u8005\u3068\u5171\u6709\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u5225\u306e\u5229\u7528\u8005\u306e\u9001\u4fe1\u72b6\u6cc1\u306b\u3088\u3063\u3066\u518d\u3073\u63b2\u8f09\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u6b8b\u308a\u307e\u3059\u3002\u518d\u767a\u3092\u9632\u3050\u306b\u306f\u3001\u9001\u4fe1\u7d4c\u8def\u305d\u306e\u3082\u306e\u3092\u5c02\u7528\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u5206\u96e2\u3059\u308b\u5bfe\u5fdc\u304c\u6709\u52b9\u3067\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Xserver\u3092\u4f7f\u3044\u7d9a\u3051\u305f\u307e\u307e\u3001\u30e1\u30fc\u30eb\u3060\u3051\u6539\u5584\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u3067\u304d\u307e\u3059\u3002Web\u30b5\u30a4\u30c8\u306e\u904b\u7528\u306fXserver\u306e\u307e\u307e\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u7d4c\u8def\u3060\u3051\u3092blastengine\u306e\u3088\u3046\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u5207\u308a\u66ff\u3048\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u79fb\u8ee2\u306f\u4e0d\u8981\u3067\u3001SMTP\u8a2d\u5b9a\u306e\u5909\u66f4\u307e\u305f\u306fAPI\u9023\u643a\u306b\u3088\u3063\u3066\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/dd>\n<\/dl><\/div>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u554f\u984c\u306f\u3001\u539f\u56e0\u304c\u4e00\u3064\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u9001\u4fe1\u5074\u306e\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u63b2\u8f09\u3084\u9001\u4fe1\u5236\u9650\u3001\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u4e0d\u5099\u3082\u3042\u308c\u3070\u3001\u53d7\u4fe1\u5074\u306eDNS\u8a2d\u5b9a\u3084\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u5bb9\u91cf\u3001\u30d5\u30a3\u30eb\u30bf\u8a2d\u5b9a\u304c\u539f\u56e0\u306e\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u8a2d\u5b9a\u3092\u3044\u3058\u308b\u524d\u306e\u5207\u308a\u5206\u3051\u304c\u6c7a\u5b9a\u7684\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001\u5207\u308a\u5206\u3051\u306e\u7d50\u679c\u304c\u300c\u5171\u7528IP\u306e\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u300d\u3084\u300c\u9001\u4fe1\u6570\u306e\u76ee\u5b89\u300d\u306b\u884c\u304d\u7740\u3044\u305f\u5834\u5408\u3001\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u3060\u3051\u3067\u89e3\u6c7a\u3059\u308b\u3053\u3068\u306f\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u306f\u591a\u6570\u306e\u5229\u7528\u8005\u3067\u30ea\u30bd\u30fc\u30b9\u3092\u5171\u6709\u3059\u308b\u8a2d\u8a08\u3067\u3042\u308a\u3001\u30e1\u30fc\u30eb\u306e\u5927\u91cf\u914d\u4fe1\u306f\u672c\u6765\u306e\u60f3\u5b9a\u7528\u9014\u3068\u7570\u306a\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>\u6b21\u306b\u53d6\u308b\u3079\u304d\u30a2\u30af\u30b7\u30e7\u30f3\u306f\u3001\u6b21\u306e3\u3064\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ol>\n<li>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u6709\u7121\u3068\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3057\u3001\u539f\u56e0\u3092\u7279\u5b9a\u3059\u308b<\/li>\n<li>MXToolbox\u3067\u9001\u4fe1\u5143IP\u306e\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u63b2\u8f09\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n<li>\u696d\u52d9\u30e1\u30fc\u30eb\u3084\u30e1\u30eb\u30de\u30ac\u306e\u6708\u9593\u914d\u4fe1\u901a\u6570\u3092\u7b97\u51fa\u3057\u3001Xserver\u306e\u76ee\u5b89\uff081\u6642\u95931,500\u901a\u30fb1\u65e515,000\u901a\uff09\u3068\u7167\u3089\u3057\u5408\u308f\u305b\u308b<\/li>\n<\/ol>\n<\/div>\n<p>3\u306e\u6642\u70b9\u3067\u4f59\u88d5\u304c\u306a\u3044\u3068\u5224\u65ad\u3067\u304d\u308b\u306a\u3089\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u7d4c\u8def\u3092\u5206\u96e2\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u3059\u3002blastengine\u3067\u3042\u308c\u3070\u3001Xserver\u306e\u74b0\u5883\u3092\u305d\u306e\u307e\u307e\u6d3b\u304b\u3057\u306a\u304c\u3089\u3001SMTP\u30ea\u30ec\u30fc\u307e\u305f\u306fAPI\u9023\u643a\u3067\u9001\u4fe1\u7d4c\u8def\u3092\u5207\u308a\u66ff\u3048\u3089\u308c\u307e\u3059\uff08\u6240\u8981\u671f\u9593\u306f\u8a2d\u5b9a\u5185\u5bb9\u306b\u3088\u308a\u7570\u306a\u308a\u307e\u3059\uff09\u3002\u307e\u305a\u306f\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3067\u3001\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u304c\u3069\u3053\u307e\u3067\u5c4a\u304f\u3088\u3046\u306b\u306a\u308b\u304b\u3092\u78ba\u304b\u3081\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u300c\u53d6\u5f15\u5148\u306b\u30e1\u30fc\u30eb\u3092\u9001\u3063\u305f\u306f\u305a\u306a\u306e\u306b\u3001\u5c4a\u3044\u3066\u3044\u306a\u3044\u3068\u9023\u7d61\u304c\u6765\u305f\u300d\u300c\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u306e\u81ea\u52d5\u8fd4\u4fe1\u304c\u4e00&#8230;<\/p>\n","protected":false},"author":8,"featured_media":22720,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7],"tags":[],"class_list":["post-22719","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-no-delivery"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"\u68ee\u795e \u4f51\u5e0c\"\/>\n\t<meta name=\"google-site-verification\" content=\"PiovTOuXTBJ31PtaOzKryzCKcy7doi7Fagvgt_-FuKo\" \/>\n\t<meta name=\"p:domain_verify\" content=\"d0359489fa6fbd5687cdb7e20bd4a9f8\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"ja_JP\" \/>\n\t\t<meta property=\"og:site_name\" content=\"BM_Blog\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5 | \u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastmail\u300dOffical Blog\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/09\/xserver-mail.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/09\/xserver-mail.png\" \/>\n\t\t<meta property=\"og:image:width\" content=\"1734\" \/>\n\t\t<meta property=\"og:image:height\" content=\"907\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-09-15T02:44:30+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-09-15T02:44:30+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:site\" content=\"@blastmail\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5 | \u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastmail\u300dOffical Blog\" \/>\n\t\t<meta name=\"twitter:creator\" content=\"@blastmail\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/09\/xserver-mail.png\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail#article\",\"name\":\"Xserver\\u3067\\u30e1\\u30fc\\u30eb\\u304c\\u5c4a\\u304b\\u306a\\u3044\\u539f\\u56e0\\u3068\\u5bfe\\u51e6\\u6cd5\\uff5c\\u9001\\u4fe1\\u30fb\\u53d7\\u4fe1\\u5225\\u306e\\u30c1\\u30a7\\u30c3\\u30af\\u624b\\u9806\\u3068\\u78ba\\u5b9f\\u306b\\u5c4a\\u3051\\u308b\\u65b9\\u6cd5 | \\u30e1\\u30fc\\u30eb\\u914d\\u4fe1\\u30b7\\u30b9\\u30c6\\u30e0\\u300cblastmail\\u300dOffical Blog\",\"headline\":\"Xserver\\u3067\\u30e1\\u30fc\\u30eb\\u304c\\u5c4a\\u304b\\u306a\\u3044\\u539f\\u56e0\\u3068\\u5bfe\\u51e6\\u6cd5\\uff5c\\u9001\\u4fe1\\u30fb\\u53d7\\u4fe1\\u5225\\u306e\\u30c1\\u30a7\\u30c3\\u30af\\u624b\\u9806\\u3068\\u78ba\\u5b9f\\u306b\\u5c4a\\u3051\\u308b\\u65b9\\u6cd5\",\"author\":{\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/author\\\/yuki-morigami\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/#organization\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/xserver-mail.png\",\"width\":1734,\"height\":907},\"datePublished\":\"2026-09-15T11:44:30+09:00\",\"dateModified\":\"2026-09-15T11:44:30+09:00\",\"inLanguage\":\"ja\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail#webpage\"},\"articleSection\":\"\\u30e1\\u30fc\\u30eb\\u4e0d\\u9054\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog#listItem\",\"position\":1,\"name\":\"\\u30db\\u30fc\\u30e0\",\"item\":\"https:\\\/\\\/blastmail.jp\\\/blog\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/.\\\/no-delivery\\\/#listItem\",\"name\":\"\\u30e1\\u30fc\\u30eb\\u4e0d\\u9054\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/.\\\/no-delivery\\\/#listItem\",\"position\":2,\"name\":\"\\u30e1\\u30fc\\u30eb\\u4e0d\\u9054\",\"item\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/.\\\/no-delivery\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail#listItem\",\"name\":\"Xserver\\u3067\\u30e1\\u30fc\\u30eb\\u304c\\u5c4a\\u304b\\u306a\\u3044\\u539f\\u56e0\\u3068\\u5bfe\\u51e6\\u6cd5\\uff5c\\u9001\\u4fe1\\u30fb\\u53d7\\u4fe1\\u5225\\u306e\\u30c1\\u30a7\\u30c3\\u30af\\u624b\\u9806\\u3068\\u78ba\\u5b9f\\u306b\\u5c4a\\u3051\\u308b\\u65b9\\u6cd5\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog#listItem\",\"name\":\"\\u30db\\u30fc\\u30e0\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail#listItem\",\"position\":3,\"name\":\"Xserver\\u3067\\u30e1\\u30fc\\u30eb\\u304c\\u5c4a\\u304b\\u306a\\u3044\\u539f\\u56e0\\u3068\\u5bfe\\u51e6\\u6cd5\\uff5c\\u9001\\u4fe1\\u30fb\\u53d7\\u4fe1\\u5225\\u306e\\u30c1\\u30a7\\u30c3\\u30af\\u624b\\u9806\\u3068\\u78ba\\u5b9f\\u306b\\u5c4a\\u3051\\u308b\\u65b9\\u6cd5\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/.\\\/no-delivery\\\/#listItem\",\"name\":\"\\u30e1\\u30fc\\u30eb\\u4e0d\\u9054\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/#organization\",\"name\":\"\\u30e1\\u30fc\\u30eb\\u914d\\u4fe1\\u30b7\\u30b9\\u30c6\\u30e0\\u300cblastmail\\u300dOffical Blog\",\"url\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/\",\"sameAs\":[\"https:\\\/\\\/twitter.com\\\/blastmail\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/author\\\/yuki-morigami\\\/#author\",\"url\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/author\\\/yuki-morigami\\\/\",\"name\":\"\\u68ee\\u795e \\u4f51\\u5e0c\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail#authorImage\",\"url\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/09\\\/IMG_3006.jpg\",\"width\":96,\"height\":96,\"caption\":\"\\u68ee\\u795e \\u4f51\\u5e0c\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail#webpage\",\"url\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail\",\"name\":\"Xserver\\u3067\\u30e1\\u30fc\\u30eb\\u304c\\u5c4a\\u304b\\u306a\\u3044\\u539f\\u56e0\\u3068\\u5bfe\\u51e6\\u6cd5\\uff5c\\u9001\\u4fe1\\u30fb\\u53d7\\u4fe1\\u5225\\u306e\\u30c1\\u30a7\\u30c3\\u30af\\u624b\\u9806\\u3068\\u78ba\\u5b9f\\u306b\\u5c4a\\u3051\\u308b\\u65b9\\u6cd5 | \\u30e1\\u30fc\\u30eb\\u914d\\u4fe1\\u30b7\\u30b9\\u30c6\\u30e0\\u300cblastmail\\u300dOffical Blog\",\"inLanguage\":\"ja\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail#breadcrumblist\"},\"author\":{\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/author\\\/yuki-morigami\\\/#author\"},\"creator\":{\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/author\\\/yuki-morigami\\\/#author\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/xserver-mail.png\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail\\\/#mainImage\",\"width\":1734,\"height\":907},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/no-delivery\\\/xserver-mail#mainImage\"},\"datePublished\":\"2026-09-15T11:44:30+09:00\",\"dateModified\":\"2026-09-15T11:44:30+09:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/\",\"name\":\"\\u30e1\\u30fc\\u30eb\\u914d\\u4fe1\\u30b7\\u30b9\\u30c6\\u30e0\\u300cblastmail\\u300dOffical Blog\",\"inLanguage\":\"ja\",\"publisher\":{\"@id\":\"https:\\\/\\\/blastmail.jp\\\/blog\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5 | \u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastmail\u300dOffical Blog","description":"","canonical_url":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail","robots":"max-image-preview:large","keywords":"","webmasterTools":{"google-site-verification":"PiovTOuXTBJ31PtaOzKryzCKcy7doi7Fagvgt_-FuKo","p:domain_verify":"d0359489fa6fbd5687cdb7e20bd4a9f8","miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail#article","name":"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5 | \u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastmail\u300dOffical Blog","headline":"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5","author":{"@id":"https:\/\/blastmail.jp\/blog\/author\/yuki-morigami\/#author"},"publisher":{"@id":"https:\/\/blastmail.jp\/blog\/#organization"},"image":{"@type":"ImageObject","url":"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/09\/xserver-mail.png","width":1734,"height":907},"datePublished":"2026-09-15T11:44:30+09:00","dateModified":"2026-09-15T11:44:30+09:00","inLanguage":"ja","mainEntityOfPage":{"@id":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail#webpage"},"isPartOf":{"@id":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail#webpage"},"articleSection":"\u30e1\u30fc\u30eb\u4e0d\u9054"},{"@type":"BreadcrumbList","@id":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/blastmail.jp\/blog#listItem","position":1,"name":"\u30db\u30fc\u30e0","item":"https:\/\/blastmail.jp\/blog","nextItem":{"@type":"ListItem","@id":"https:\/\/blastmail.jp\/blog\/.\/no-delivery\/#listItem","name":"\u30e1\u30fc\u30eb\u4e0d\u9054"}},{"@type":"ListItem","@id":"https:\/\/blastmail.jp\/blog\/.\/no-delivery\/#listItem","position":2,"name":"\u30e1\u30fc\u30eb\u4e0d\u9054","item":"https:\/\/blastmail.jp\/blog\/.\/no-delivery\/","nextItem":{"@type":"ListItem","@id":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail#listItem","name":"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5"},"previousItem":{"@type":"ListItem","@id":"https:\/\/blastmail.jp\/blog#listItem","name":"\u30db\u30fc\u30e0"}},{"@type":"ListItem","@id":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail#listItem","position":3,"name":"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5","previousItem":{"@type":"ListItem","@id":"https:\/\/blastmail.jp\/blog\/.\/no-delivery\/#listItem","name":"\u30e1\u30fc\u30eb\u4e0d\u9054"}}]},{"@type":"Organization","@id":"https:\/\/blastmail.jp\/blog\/#organization","name":"\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastmail\u300dOffical Blog","url":"https:\/\/blastmail.jp\/blog\/","sameAs":["https:\/\/twitter.com\/blastmail"]},{"@type":"Person","@id":"https:\/\/blastmail.jp\/blog\/author\/yuki-morigami\/#author","url":"https:\/\/blastmail.jp\/blog\/author\/yuki-morigami\/","name":"\u68ee\u795e \u4f51\u5e0c","image":{"@type":"ImageObject","@id":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail#authorImage","url":"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2021\/09\/IMG_3006.jpg","width":96,"height":96,"caption":"\u68ee\u795e \u4f51\u5e0c"}},{"@type":"WebPage","@id":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail#webpage","url":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail","name":"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5 | \u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastmail\u300dOffical Blog","inLanguage":"ja","isPartOf":{"@id":"https:\/\/blastmail.jp\/blog\/#website"},"breadcrumb":{"@id":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail#breadcrumblist"},"author":{"@id":"https:\/\/blastmail.jp\/blog\/author\/yuki-morigami\/#author"},"creator":{"@id":"https:\/\/blastmail.jp\/blog\/author\/yuki-morigami\/#author"},"image":{"@type":"ImageObject","url":"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/09\/xserver-mail.png","@id":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail\/#mainImage","width":1734,"height":907},"primaryImageOfPage":{"@id":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail#mainImage"},"datePublished":"2026-09-15T11:44:30+09:00","dateModified":"2026-09-15T11:44:30+09:00"},{"@type":"WebSite","@id":"https:\/\/blastmail.jp\/blog\/#website","url":"https:\/\/blastmail.jp\/blog\/","name":"\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastmail\u300dOffical Blog","inLanguage":"ja","publisher":{"@id":"https:\/\/blastmail.jp\/blog\/#organization"}}]},"og:locale":"ja_JP","og:site_name":"BM_Blog","og:type":"article","og:title":"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5 | \u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastmail\u300dOffical Blog","og:url":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail","og:image":"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/09\/xserver-mail.png","og:image:secure_url":"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/09\/xserver-mail.png","og:image:width":1734,"og:image:height":907,"article:published_time":"2026-09-15T02:44:30+00:00","article:modified_time":"2026-09-15T02:44:30+00:00","twitter:card":"summary","twitter:site":"@blastmail","twitter:title":"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5 | \u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastmail\u300dOffical Blog","twitter:creator":"@blastmail","twitter:image":"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/09\/xserver-mail.png"},"aioseo_meta_data":{"post_id":"22719","title":null,"description":null,"keywords":null,"keyphrases":{"focus":{"keyphrase":"","score":0,"analysis":{"keyphraseInTitle":{"score":0,"maxScore":9,"error":1}}},"additional":[]},"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":"","og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":true,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"Article","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":"-1","robots_max_videopreview":"-1","robots_max_imagepreview":"large","priority":null,"frequency":"default","local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":{"faqs":[],"keyPoints":[],"schemas":[],"titles":[],"descriptions":[],"socialPosts":{"email":{"subject":"","preview":"","content":""},"linkedin":[],"twitter":[],"facebook":[],"instagram":[]}},"created":"2026-09-15 02:35:40","updated":"2026-09-19 01:24:06","seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/blastmail.jp\/blog\" title=\"\u30db\u30fc\u30e0\">\u30db\u30fc\u30e0<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&rsaquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/blastmail.jp\/blog\/.\/no-delivery\/\" title=\"\u30e1\u30fc\u30eb\u4e0d\u9054\">\u30e1\u30fc\u30eb\u4e0d\u9054<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&rsaquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tXserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"\u30db\u30fc\u30e0","link":"https:\/\/blastmail.jp\/blog"},{"label":"\u30e1\u30fc\u30eb\u4e0d\u9054","link":"https:\/\/blastmail.jp\/blog\/.\/no-delivery\/"},{"label":"Xserver\u3067\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u9001\u4fe1\u30fb\u53d7\u4fe1\u5225\u306e\u30c1\u30a7\u30c3\u30af\u624b\u9806\u3068\u78ba\u5b9f\u306b\u5c4a\u3051\u308b\u65b9\u6cd5","link":"https:\/\/blastmail.jp\/blog\/no-delivery\/xserver-mail"}],"_links":{"self":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/22719","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/comments?post=22719"}],"version-history":[{"count":1,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/22719\/revisions"}],"predecessor-version":[{"id":22721,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/posts\/22719\/revisions\/22721"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/media\/22720"}],"wp:attachment":[{"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/media?parent=22719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/categories?post=22719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blastmail.jp\/blog\/wp-json\/wp\/v2\/tags?post=22719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}