{"id":22750,"date":"2026-09-18T15:43:18","date_gmt":"2026-09-18T06:43:18","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=22750"},"modified":"2026-09-18T15:43:18","modified_gmt":"2026-09-18T06:43:18","slug":"hotmail-not-arriving","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/no-delivery\/hotmail-not-arriving","title":{"rendered":"Hotmail\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u306f\uff1fMicrosoft\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u78ba\u8a8d\u65b9\u6cd5\u3068\u89e3\u9664\u7533\u8acb\u306e\u624b\u9806"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/09\/hotmail-not-arriving.png\" alt=\"Hotmail\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u306f\uff1fMicrosoft\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u78ba\u8a8d\u65b9\u6cd5\u3068\u89e3\u9664\u7533\u8acb\u306e\u624b\u9806\" width=\"1734\" height=\"907\" class=\"alignnone size-full wp-image-22752\" \/><\/p>\n<p>\u300c@hotmail.com \u306e\u304a\u5ba2\u69d8\u306b\u3060\u3051\u3001\u30e1\u30eb\u30de\u30ac\u304c\u5c4a\u3044\u3066\u3044\u306a\u3044\u3089\u3057\u3044\u300d\u300c\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306b block list \u3068\u3044\u3046\u82f1\u6587\u304c\u4e26\u3093\u3067\u3044\u308b\u304c\u3001\u4f55\u3092\u3059\u308c\u3070\u3044\u3044\u306e\u304b\u308f\u304b\u3089\u306a\u3044\u300d\u3002Hotmail\u30fbOutlook.com\u5b9b\u306e\u4e0d\u9054\u306f\u3001<strong>\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a55\u4fa1\uff08\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\uff09\u3068Microsoft\u72ec\u81ea\u306e\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8<\/strong>\u304c\u5927\u304d\u304f\u5f71\u97ff\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u5384\u4ecb\u306a\u306e\u306f\u3001\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306f\u81ea\u793e\u306eDNS\u8a2d\u5b9a\u3092\u3044\u304f\u3089\u898b\u76f4\u3057\u3066\u3082\u89e3\u9664\u3055\u308c\u306a\u3044\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u89e3\u9664\u3059\u308b\u306b\u306f\u3001Microsoft\u306e\u6b63\u3057\u3044\u7a93\u53e3\u306b\u3001\u6b63\u3057\u3044\u60c5\u5831\u3092\u6dfb\u3048\u3066\u7533\u8acb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001Hotmail\u5b9b\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u3068\u304d\u306e\u539f\u56e0\u3092<strong>\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u304b\u3089\u9006\u7b97\u3057\u3066\u7279\u5b9a\u3059\u308b\u65b9\u6cd5<\/strong>\u3068\u3001<strong>Microsoft\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u89e3\u9664\u7533\u8acb\u306e\u5b9f\u52d9\u624b\u9806<\/strong>\u3092\u3001\u7533\u8acb\u30d5\u30a9\u30fc\u30e0\u306e\u4f7f\u3044\u5206\u3051\u304b\u3089\u8a18\u5165\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3001\u300c\u7de9\u548c\u63aa\u7f6e\u306e\u5bfe\u8c61\u5916\u300d\u3068\u8fd4\u7b54\u3055\u308c\u305f\u3068\u304d\u306e\u5bfe\u5fdc\u307e\u3067\u5177\u4f53\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3042\u308f\u305b\u3066\u30012026\u5e746\u6708\u306b\u30dd\u30fc\u30bf\u30eb\u304c\u79fb\u884c\u3057\u305fMicrosoft\u516c\u5f0f\u306e\u76e3\u8996\u30c4\u30fc\u30eb\u300cSNDS\u300d\u306e\u6700\u65b0\u4ed5\u69d8\u3068\u3001\u89e3\u9664\u5f8c\u306b\u518d\u30d6\u30ed\u30c3\u30af\u3055\u308c\u306a\u3044\u305f\u3081\u306e90\u65e5\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u3082\u7d39\u4ecb\u3057\u307e\u3059\u3002\u4e00\u6589\u914d\u4fe1\u306e\u5230\u9054\u7387\u306b\u8cac\u4efb\u3092\u6301\u3064\u62c5\u5f53\u8005\u304c\u3001\u660e\u65e5\u304b\u3089\u52d5\u3051\u308b\u5185\u5bb9\u306b\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/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>Hotmail\u5b9b\u306e\u4e0d\u9054\u306f\u300c\u3069\u3053\u3067\u6b62\u307e\u3063\u3066\u3044\u308b\u304b\u300d\u3092\u5148\u306b\u7279\u5b9a\u3059\u308b<\/h2>\n<p>\u7d50\u8ad6\u304b\u3089\u8a00\u3048\u3070\u3001Hotmail\u5b9b\u306e\u4e0d\u9054\u5bfe\u5fdc\u306f<strong>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\uff08\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\uff09\u304c\u8fd4\u3063\u3066\u304d\u3066\u3044\u308b\u304b\u3069\u3046\u304b<\/strong>\u3067\u3001\u3084\u308b\u3079\u304d\u3053\u3068\u304c\u307e\u3063\u305f\u304f\u5909\u308f\u308a\u307e\u3059\u3002\u3053\u3053\u3092\u98db\u3070\u3057\u3066DNS\u3092\u89e6\u308a\u59cb\u3081\u308b\u3068\u3001\u4f55\u65e5\u3082\u7121\u99c4\u306b\u3057\u307e\u3059\u3002<\/p>\n<h3>\u305d\u3082\u305d\u3082Hotmail\u3068Outlook.com\u306f\u540c\u3058\u30b5\u30fc\u30d3\u30b9<\/h3>\n<p>Hotmail\u306f1996\u5e74\u306b\u767b\u5834\u3057\u305fWeb\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u3067\u3001Microsoft\u306b\u3088\u308b\u8cb7\u53ce\u3068MSN Hotmail\u3001Windows Live Hotmail\u3078\u306e\u6539\u79f0\u3092\u7d4c\u3066\u30012013\u5e74\u4ee5\u964d\u306fOutlook.com\u306b\u7d71\u5408\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057<strong>@hotmail.com\u3001@hotmail.co.jp\u3001@hotmail.jp\u3068\u3044\u3063\u305f\u30c9\u30e1\u30a4\u30f3\u306f\u73fe\u5728\u3082\u6709\u52b9<\/strong>\u3067\u3001\u9577\u5e74\u540c\u3058\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3044\u7d9a\u3051\u3066\u3044\u308b\u500b\u4eba\u30e6\u30fc\u30b6\u30fc\u304c\u65e5\u672c\u56fd\u5185\u306b\u3082\u76f8\u5f53\u6570\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u6280\u8853\u7684\u306b\u306f\u3001Hotmail\u5b9b\u306b\u5c4a\u304b\u306a\u3044\u554f\u984c\u306fOutlook.com\u5b9b\u306b\u5c4a\u304b\u306a\u3044\u554f\u984c\u3068\u307e\u3063\u305f\u304f\u540c\u3058\u3067\u3059\u3002\u53d7\u4fe1\u3092\u62c5\u3063\u3066\u3044\u308b\u306e\u306fMicrosoft\u306e\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u5411\u3051\u30e1\u30fc\u30eb\u57fa\u76e4\u3067\u3042\u308a\u3001\u30d5\u30a3\u30eb\u30bf\u30fc\u3082\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u3082Outlook.com\u30fbLive.com\u30fbMSN.com\u3068\u5171\u901a\u3067\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3067\u3001\u6cd5\u4eba\u304c\u4f7f\u3046Microsoft 365\uff08Exchange Online\uff09\u306e\u4f01\u696d\u30a2\u30ab\u30a6\u30f3\u30c8\u306f<strong>\u5225\u7cfb\u7d71<\/strong>\u3068\u3057\u3066\u6271\u308f\u308c\u307e\u3059\u3002\u30d5\u30a3\u30eb\u30bf\u30fc\u306e\u4ed5\u7d44\u307f\u3082\u7ba1\u7406\u8005\u306e\u95a2\u4e0e\u7bc4\u56f2\u3082\u7570\u306a\u308a\u3001\u5f8c\u8ff0\u3059\u308b\u89e3\u9664\u7533\u8acb\u306e\u7a93\u53e3\u3082\u5206\u304b\u308c\u307e\u3059\u3002\u300c@hotmail.com\u5b9b\u306a\u306e\u304b\u3001\u4f01\u696d\u306eMicrosoft 365\u5b9b\u306a\u306e\u304b\u300d\u306f\u3001\u6700\u521d\u306b\u5fc5\u305a\u5207\u308a\u5206\u3051\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u308b\u304b\u3001\u8fd4\u3089\u306a\u3044\u304b\u3067\u5bfe\u5fdc\u304c\u5206\u304b\u308c\u308b<\/h3>\n<p>Hotmail\u5b9b\u306e\u4e0d\u9054\u306f\u3001\u6b21\u306e3\u30d1\u30bf\u30fc\u30f3\u306b\u5206\u985e\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u3063\u3066\u304f\u308b<\/strong>\uff1a\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304c\u63a5\u7d9a\u307e\u305f\u306f\u53d7\u4fe1\u3092\u660e\u78ba\u306b\u62d2\u5426\u3057\u3066\u3044\u308b\u3002SMTP\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u306b\u539f\u56e0\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u6700\u3082\u7279\u5b9a\u304c\u65e9\u3044<\/li>\n<li><strong>\u30a8\u30e9\u30fc\u306f\u8fd4\u3089\u306a\u3044\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u5165\u308b<\/strong>\uff1a\u53d7\u4fe1\u81ea\u4f53\u306f\u3055\u308c\u3066\u304a\u308a\u3001\u30d5\u30a3\u30eb\u30bf\u30fc\u306e\u8a55\u4fa1\u304c\u4f4e\u3044\u72b6\u614b\u3002\u8a8d\u8a3c\u30fb\u30b3\u30f3\u30c6\u30f3\u30c4\u30fb\u82e6\u60c5\u7387\u306e\u554f\u984c<\/li>\n<li><strong>\u30a8\u30e9\u30fc\u3082\u8fd4\u3089\u305a\u3001\u53d7\u4fe1\u30c8\u30ec\u30a4\u306b\u3082\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u3082\u306a\u3044<\/strong>\uff1a\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u53d7\u4fe1\u5f8c\u306b\u7834\u68c4\u3055\u308c\u3066\u3044\u308b\uff08\u3044\u308f\u3086\u308b\u30b5\u30a4\u30ec\u30f3\u30c8\u30d6\u30ed\u30c3\u30af\uff09\u3002\u6700\u3082\u5384\u4ecb\u306a\u30d1\u30bf\u30fc\u30f3<\/li>\n<\/ul>\n<\/div>\n<p>\u4e00\u6589\u914d\u4fe1\u3067\u300cHotmail\u30c9\u30e1\u30a4\u30f3\u3060\u3051\u5230\u9054\u7387\u304c\u6975\u7aef\u306b\u4f4e\u3044\u300d\u3068\u304d\u306f\u30011\u4ef6\u3067\u3082\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u6b8b\u3063\u3066\u3044\u306a\u3044\u304b\u3092\u5fc5\u305a\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u914d\u4fe1\u30ed\u30b0\u3084\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u4e00\u89a7\u306b\u3001\u539f\u6587\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<h3>\u53d7\u4fe1\u8005\u5074\u306e\u554f\u984c\u3068\u9001\u4fe1\u8005\u5074\u306e\u554f\u984c\u3092\u6df7\u540c\u3057\u306a\u3044<\/h3>\n<p>\u300cHotmail\u3067\u53d7\u4fe1\u3067\u304d\u306a\u3044\u300d\u3068\u3044\u3046\u76f8\u8ac7\u306b\u306f\u3001\u53d7\u4fe1\u8005\u672c\u4eba\u306e\u8a2d\u5b9a\u304c\u539f\u56e0\u306e\u30b1\u30fc\u30b9\u3082\u6df7\u5728\u3057\u307e\u3059\u3002\u632f\u308a\u5206\u3051\u30eb\u30fc\u30eb\u3001\u53d7\u4fe1\u62d2\u5426\u30ea\u30b9\u30c8\u3001\u512a\u5148\u53d7\u4fe1\u30c8\u30ec\u30a4\u306e\u300c\u305d\u306e\u4ed6\u300d\u30bf\u30d6\u3001\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306e\u5bb9\u91cf\u8d85\u904e\u306a\u3069\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057<strong>\u4e00\u6589\u914d\u4fe1\u3067\u8907\u6570\u306e\u53d7\u4fe1\u8005\u306b\u540c\u6642\u306b\u5c4a\u3044\u3066\u3044\u306a\u3044<\/strong>\u306e\u3067\u3042\u308c\u3070\u3001\u53d7\u4fe1\u8005\u5074\u306e\u500b\u5225\u8a2d\u5b9a\u304c\u539f\u56e0\u3067\u3042\u308b\u53ef\u80fd\u6027\u306f\u307b\u307c\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u5834\u5408\u306f\u9001\u4fe1\u8005\u5074\u306e\u554f\u984c\u3068\u3057\u3066\u3001\u4ee5\u964d\u306e\u624b\u9806\u3067\u5bfe\u5fdc\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u53d7\u4fe1\u8005\u5074\u306e\u78ba\u8a8d\u624b\u9806\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/no-delivery\/outlook-emails-not-arriving\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/07\/outlook.png\" alt=\"Outlook\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u53d7\u4fe1\u8005\u30fb\u9001\u4fe1\u8005\u305d\u308c\u305e\u308c\u306e\u89e3\u6c7a\u624b\u9806\u3092\u5fb9\u5e95\u89e3\u8aac\" width=\"90\" height=\"48\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">Outlook\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\uff5c\u53d7\u4fe1\u8005\u30fb\u9001\u4fe1\u8005\u305d\u308c\u305e\u308c\u306e\u89e3\u6c7a\u624b\u9806\u3092\u5fb9\u5e95\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">\u300c\u53d6\u5f15\u5148\u304b\u3089\u306e\u30e1\u30fc\u30eb\u304cOutlook\u306b\u5c4a\u304b\u306a\u3044\u300d\u300c\u30e1\u30eb\u30de\u30ac\u3092Outlook\u5b9b\u306b\u9001\u308b\u3068\u3001\u306a\u305c\u304b\u8aad\u8005\u306b\u5c4a\u3044\u3066\u3044\u306a\u3044\u300d\u2014\u2014Outlook\u306b\u307e\u3064\u308f\u308b\u300c\u30e1\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>\u3010\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u5225\u3011Hotmail\u5b9b\u306e\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u8aad\u307f\u65b9<\/h2>\n<p>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u3063\u3066\u304d\u3066\u3044\u308b\u306a\u3089\u3001\u539f\u56e0\u306f\u30b3\u30fc\u30c9\u304c\u6559\u3048\u3066\u304f\u308c\u307e\u3059\u3002Microsoft\u304c\u8fd4\u3059\u4ee3\u8868\u7684\u306a\u30b3\u30fc\u30c9\u3068\u3001\u9001\u4fe1\u8005\u5074\u3067\u5bfe\u5fdc\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u3092\u6574\u7406\u3057\u307e\u3057\u305f\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<thead>\n<tr>\n<th>\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9<\/th>\n<th>Microsoft\u304c\u793a\u3059\u610f\u5473<\/th>\n<th>\u4e3b\u306a\u539f\u56e0<\/th>\n<th>\u9001\u4fe1\u8005\u5074\u3067\u306e\u5bfe\u5fdc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>550 5.7.1\uff08S3150\uff09<\/td>\n<td>\u9001\u4fe1\u5143IP\u304c\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b<\/td>\n<td>IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u4f4e\u4e0b\u3001\u5171\u6709IP\u306e\u5dfb\u304d\u6dfb\u3048<\/td>\n<td>\u89e3\u9664\u7533\u8acb\u304c\u5fc5\u8981\uff08\u672c\u8a18\u4e8b\u3067\u89e3\u8aac\uff09<\/td>\n<\/tr>\n<tr>\n<td>550 5.7.515<\/td>\n<td>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u304c\u5fc5\u8981\u306a\u8a8d\u8a3c\u30ec\u30d9\u30eb\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044<\/td>\n<td>SPF\u30fbDKIM\u30fbDMARC\u306e\u672a\u8a2d\u5b9a\u307e\u305f\u306f\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u4e0d\u4e00\u81f4<\/td>\n<td>DNS\u4fee\u6b63\u3067\u81ea\u529b\u89e3\u6c7a\u3067\u304d\u308b<\/td>\n<\/tr>\n<tr>\n<td>550 SC-001<\/td>\n<td>\u30dd\u30ea\u30b7\u30fc\u3092\u7406\u7531\u306bOutlook.com\u304c\u62d2\u5426<\/td>\n<td>\u5185\u5bb9\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u306e\u7279\u5fb4\u306b\u985e\u4f3c\u3001\u307e\u305f\u306fIP\uff0f\u30c9\u30e1\u30a4\u30f3\u8a55\u4fa1<\/td>\n<td>\u539f\u56e0\u662f\u6b63\u306e\u3046\u3048\u89e3\u9664\u7533\u8acb<\/td>\n<\/tr>\n<tr>\n<td>550 DY-001\uff0fDY-002<\/td>\n<td>\u30dd\u30ea\u30b7\u30fc\u3092\u7406\u7531\u306b\u62d2\u5426<\/td>\n<td>\u30b5\u30fc\u30d0\u30fc\u3084PC\u306e\u4e0d\u6b63\u5229\u7528\u30fb\u30a6\u30a4\u30eb\u30b9\u611f\u67d3\u306e\u7591\u3044<\/td>\n<td>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u70b9\u691c\u304c\u6700\u512a\u5148<\/td>\n<\/tr>\n<tr>\n<td>550 OU-001<\/td>\n<td>\u30dd\u30ea\u30b7\u30fc\u3092\u7406\u7531\u306b\u62d2\u5426<\/td>\n<td>\u500b\u5225\u5bfe\u5fdc\u304c\u5fc5\u8981\u306a\u62d2\u5426\u3002\u30b5\u30dd\u30fc\u30c8\u7a93\u53e3\u3078\u306e\u9023\u7d61\u304c\u524d\u63d0<\/td>\n<td>\u7a93\u53e3\u3078\u554f\u3044\u5408\u308f\u305b<\/td>\n<\/tr>\n<tr>\n<td>421 RP-001<\/td>\n<td>\u8a31\u53ef\u3055\u308c\u305f\u63a5\u7d9a\u30ec\u30fc\u30c8\u306e\u5236\u9650\u3092\u8d85\u904e<\/td>\n<td>\u77ed\u6642\u9593\u306b\u5927\u91cf\u63a5\u7d9a\u3002IP\uff0f\u30c9\u30e1\u30a4\u30f3\u8a55\u4fa1\u3068\u9023\u52d5<\/td>\n<td>\u914d\u4fe1\u901f\u5ea6\u306e\u8abf\u6574<\/td>\n<\/tr>\n<tr>\n<td>550 5.7.606\u301c649<\/td>\n<td>banned sending IP\uff08Microsoft 365\u5b9b\uff09<\/td>\n<td>\u6cd5\u4eba\u5411\u3051\u57fa\u76e4\u3067\u306eIP\u30d6\u30ed\u30c3\u30af<\/td>\n<td>\u5c02\u7528\u306e\u9664\u5916\u30dd\u30fc\u30bf\u30eb\u304b\u3089\u7533\u8acb<\/td>\n<\/tr>\n<tr>\n<td>550 5.7.511<\/td>\n<td>banned sender<\/td>\n<td>\u9001\u4fe1\u8005\u5358\u4f4d\u306e\u30d6\u30ed\u30c3\u30af<\/td>\n<td>NDR\u306b\u8a18\u8f09\u306e\u5b9b\u5148\u3078\u8ee2\u9001\u3057\u3066\u7533\u8acb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>550 5.7.1\uff08S3150\uff09\u306fIP\u30a2\u30c9\u30ec\u30b9\u306e\u30d6\u30ed\u30c3\u30af<\/h3>\n<p>Hotmail\u5b9b\u306e\u4e0d\u9054\u3067\u3088\u304f\u898b\u3089\u308c\u308b\u306e\u304c\u3053\u306e\u30b3\u30fc\u30c9\u3067\u3059\u3002\u5b9f\u969b\u306e\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u82f1\u6587\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<pre>550 5.7.1 Unfortunately, messages from [xxx.xxx.xxx.xxx] weren't sent.\r\nPlease contact your Internet service provider since part of their network is on our block list (S3150).<\/pre>\n<p>\u30dd\u30a4\u30f3\u30c8\u306f\u3001<strong>\u30d6\u30ed\u30c3\u30af\u5bfe\u8c61\u304c\u300c\u30c9\u30e1\u30a4\u30f3\u300d\u3067\u306f\u306a\u304f\u300cIP\u30a2\u30c9\u30ec\u30b9\u300d<\/strong>\u3067\u3042\u308b\u70b9\u3067\u3059\u3002\u89d2\u62ec\u5f27\u5185\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u30e1\u30e2\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306eIP\u304c\u3001Microsoft\u306e\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u8f09\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>DNS\u306eSPF\u3084DKIM\u3092\u76f4\u3057\u3066\u3082\u3001\u3053\u306e\u30a8\u30e9\u30fc\u306f\u6d88\u3048\u307e\u305b\u3093\u3002\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u304b\u3089\u306e\u9664\u5916\u306fMicrosoft\u5074\u306e\u64cd\u4f5c\u3067\u3042\u308a\u3001\u7533\u8acb\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h3>550 5.7.515\u306f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u4e0d\u5099<\/h3>\n<p>\u3053\u3061\u3089\u306f\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u3068\u306f\u5225\u7cfb\u7d71\u3067\u3001<strong>2025\u5e745\u67085\u65e5\u306b\u65bd\u884c\u3055\u308c\u305fOutlook\u306e\u9001\u4fe1\u8005\u8981\u4ef6<\/strong>\u306b\u62b5\u89e6\u3057\u3066\u3044\u308b\u72b6\u614b\u3067\u3059\u3002\u30a8\u30e9\u30fc\u5168\u6587\u306f\u6b21\u306e\u5f62\u5f0f\u3067\u3059\u3002<\/p>\n<pre>550 5.7.515 Access denied, sending domain &lt;\u30c9\u30e1\u30a4\u30f3&gt; does not meet the required authentication level.<\/pre>\n<p>Microsoft\u306f\u3053\u306e\u8981\u4ef6\u306e\u5bfe\u8c61\u3092\u3001<strong>Microsoft\u306e\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u5411\u3051\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306b1\u65e55,000\u901a\u4ee5\u4e0a\u3092\u9001\u4fe1\u3057\u3001\u304b\u3064\u3059\u3079\u3066\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u304c5322.From\uff08\u5dee\u51fa\u4eba\uff09\u30a2\u30c9\u30ec\u30b9\u3067\u540c\u3058\u30c9\u30e1\u30a4\u30f3\u3092\u4f7f\u7528\u3059\u308b\u9001\u4fe1\u8005<\/strong>\u3068\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3057\u304d\u3044\u5024\u306b\u9054\u3059\u308b\u3068\u3001\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u304b\u3089\u306e\u3059\u3079\u3066\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u4ee5\u4e0b\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u30c9\u30e1\u30a4\u30f3\u306eSPF\u30ec\u30b3\u30fc\u30c9\u3068DKIM\u30ec\u30b3\u30fc\u30c9\u3092\u516c\u958b\u3057\u3001<strong>\u4e21\u65b9\u306e\u30c1\u30a7\u30c3\u30af\u306b\u5408\u683c<\/strong>\u3059\u308b\u3053\u3068<\/li>\n<li>\u30c9\u30e1\u30a4\u30f3\u306eDMARC\u30ec\u30b3\u30fc\u30c9\uff08\u6700\u4f4e\u3067\u3082 v=DMARC1; p=none\uff09\u3092\u516c\u958b\u3059\u308b\u3053\u3068<\/li>\n<li>SPF\u307e\u305f\u306fDKIM\u306e\u5c11\u306a\u304f\u3068\u3082\u4e00\u65b9\u304c\u30015322.From\u30a2\u30c9\u30ec\u30b9\u306e\u30c9\u30e1\u30a4\u30f3\u3068\u4e00\u81f4\uff08\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\uff09\u3057\u3066\u3044\u308b\u3053\u3068<\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u306e\u30a8\u30e9\u30fc\u306f<strong>DNS\u306e\u4fee\u6b63\u3060\u3051\u3067\u81ea\u529b\u89e3\u6c7a\u3067\u304d\u307e\u3059<\/strong>\u3002\u7533\u8acb\u306f\u4e0d\u8981\u3067\u3059\u3002\u9006\u306b\u8a00\u3048\u3070\u3001\u8a8d\u8a3c\u3092\u76f4\u3055\u306a\u3044\u307e\u307e\u89e3\u9664\u7533\u8acb\u3092\u3057\u3066\u3082\u3001\u89e3\u9664\u306b\u306f\u81f3\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>2025\u5e745\u6708\u65bd\u884c\u306e\u9001\u4fe1\u8005\u8981\u4ef6\u306e\u5168\u5bb9\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mail-delivery\/outlook-requirements\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2025\/04\/outlook-requirements.png\" alt=\"\u30102025\u5e745\u6708\u65bd\u884c\u3011Outlook\u30e1\u30fc\u30eb\u9001\u4fe1\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5909\u66f4\u306e\u5168\u5bb9\u3068\u5230\u9054\u7387\u3092\u5b88\u308b\u5fc5\u9808\u5bfe\u7b56\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u30102025\u5e745\u6708\u65bd\u884c\u3011Outlook\u30e1\u30fc\u30eb\u9001\u4fe1\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5909\u66f4\u306e\u5168\u5bb9\u3068\u5230\u9054\u7387\u3092\u5b88\u308b\u5fc5\u9808\u5bfe\u7b56<\/div>\n    <div class=\"blogcard_excerpt\">2024\u5e74\u306b\u5b9f\u65bd\u3055\u308c\u305fGmail\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5909\u66f4\u306b\u3088\u308a\u3001\u591a\u304f\u306e\u4f01\u696d\u304c\u30e1\u30fc\u30eb\u914d\u4fe1\u74b0\u5883\u306e\u898b\u76f4\u3057\u3092\u8feb\u3089\u308c\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u305d\u308c\u306b\u7d9a\u304f\u5f62\u3067Microsof\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>\u30a8\u30e9\u30fc\u304c\u8fd4\u3089\u306a\u3044\u306e\u306b\u5c4a\u304b\u306a\u3044\u300c\u30b5\u30a4\u30ec\u30f3\u30c8\u30d6\u30ed\u30c3\u30af\u300d<\/h3>\n<p>\u6700\u3082\u5224\u65ad\u304c\u96e3\u3057\u3044\u306e\u304c\u3001\u30a8\u30e9\u30fc\u3082\u8fd4\u3089\u305a\u53d7\u4fe1\u3082\u3055\u308c\u3066\u3044\u306a\u3044\u30b1\u30fc\u30b9\u3067\u3059\u3002Outlook.com\u3067\u306f\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u306e\u7591\u3044\u304c\u5f37\u3044\u3068\u5224\u5b9a\u3055\u308c\u305f\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u3059\u3089\u5165\u3089\u305a\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u7834\u68c4\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u72b6\u614b\u306f\u914d\u4fe1\u30ed\u30b0\u304b\u3089\u306f\u300c\u9001\u4fe1\u6210\u529f\u300d\u306b\u898b\u3048\u308b\u305f\u3081\u3001\u5230\u9054\u7387\u306e\u6570\u5024\u3060\u3051\u3092\u898b\u3066\u3044\u308b\u3068\u6c17\u3065\u3051\u307e\u305b\u3093\u3002\u5224\u65ad\u6750\u6599\u306b\u306a\u308b\u306e\u306f\u6b21\u306e2\u3064\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u81ea\u793e\u3067\u7528\u610f\u3057\u305fHotmail\u306e\u30c6\u30b9\u30c8\u30a2\u30ab\u30a6\u30f3\u30c8\u5b9b\u306b\u3001\u540c\u3058\u5185\u5bb9\u30fb\u540c\u3058\u914d\u4fe1\u7d4c\u8def\u3067\u5c4a\u304f\u304b<\/li>\n<li>\u5f8c\u8ff0\u3059\u308bSNDS\u3067\u3001\u8a72\u5f53IP\u306e\u30d5\u30a3\u30eb\u30bf\u30fc\u7d50\u679c\u304c\u9ec4\u30fb\u8d64\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u304b<\/li>\n<\/ul>\n<\/div>\n<p>\u30c6\u30b9\u30c8\u7528\u306eHotmail\uff0fOutlook.com\u30a2\u30ab\u30a6\u30f3\u30c8\u306f\u3001\u3053\u306e\u5207\u308a\u5206\u3051\u306e\u305f\u3081\u306b1\u3064\u4f5c\u3063\u3066\u304a\u304f\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002\u914d\u4fe1\u306e\u305f\u3073\u306b\u81ea\u5206\u306e\u76ee\u3067\u53d7\u4fe1\u30c8\u30ec\u30a4\u3092\u78ba\u8a8d\u3067\u304d\u308b\u74b0\u5883\u306f\u3001\u76e3\u8996\u30c4\u30fc\u30eb\u3068\u4f75\u7528\u3059\u308b\u524d\u63d0\u3067\u6709\u52b9\u3067\u3059\u3002<\/p>\n<h2>Microsoft\u306e\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u308b6\u3064\u306e\u539f\u56e0<\/h2>\n<p>\u89e3\u9664\u7533\u8acb\u306e\u524d\u306b\u3001\u306a\u305c\u767b\u9332\u3055\u308c\u305f\u306e\u304b\u3092\u7279\u5b9a\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u539f\u56e0\u3092\u6b8b\u3057\u305f\u307e\u307e\u7533\u8acb\u3057\u3066\u3082\u3001\u89e3\u9664\u3055\u308c\u306a\u3044\u3001\u3042\u308b\u3044\u306f\u89e3\u9664\u5f8c\u306b\u518d\u767b\u9332\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u5171\u6709IP\u30a2\u30c9\u30ec\u30b9\u306e\u5dfb\u304d\u6dfb\u3048\u3092\u53d7\u3051\u3066\u3044\u308b<\/h3>\n<p>\u81ea\u793e\u306b\u4e00\u5207\u306e\u975e\u304c\u306a\u304f\u3066\u3082\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u3001\u5bfe\u51e6\u304c\u96e3\u3057\u3044\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002\u5171\u7528\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3084\u5171\u6709IP\u306e\u914d\u4fe1\u74b0\u5883\u3067\u306f\u3001\u540c\u3058IP\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3046\u5225\u306e\u5229\u7528\u8005\u304c\u30b9\u30d1\u30e0\u7684\u306a\u914d\u4fe1\u3092\u884c\u3046\u3068\u3001<strong>IP\u30a2\u30c9\u30ec\u30b9\u5358\u4f4d\u3067\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u308b<\/strong>\u305f\u3081\u3001\u7121\u95a2\u4fc2\u306a\u5229\u7528\u8005\u307e\u3067\u4e00\u6589\u306b\u5dfb\u304d\u6dfb\u3048\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u898b\u5206\u3051\u65b9\u306f\u5358\u7d14\u3067\u3001\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306b\u8a18\u8f09\u3055\u308c\u305fIP\u30a2\u30c9\u30ec\u30b9\u304c\u81ea\u793e\u5c02\u7528\u306e\u3082\u306e\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3060\u3051\u3067\u3059\u3002\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u5171\u6709IP\u3067\u3042\u308c\u3070\u3001\u81ea\u793e\u3067\u306f\u89e3\u9664\u7533\u8acb\u3059\u3089\u3067\u304d\u307e\u305b\u3093\uff08\u5f8c\u8ff0\uff09\u3002<\/p>\n<h3>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u4e0d\u5099\u30fb\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u4e0d\u4e00\u81f4<\/h3>\n<p>SPF\u30fbDKIM\u30fbDMARC\u304c\u672a\u8a2d\u5b9a\u3001\u3042\u308b\u3044\u306f\u8a2d\u5b9a\u30df\u30b9\u304c\u3042\u308b\u3068\u3001Microsoft\u306f\u300c\u306a\u308a\u3059\u307e\u3057\u306e\u7591\u3044\u304c\u3042\u308b\u9001\u4fe1\u8005\u300d\u3068\u8a55\u4fa1\u3057\u307e\u3059\u3002\u8a8d\u8a3c\u306e\u5931\u6557\u304c\u7d9a\u3051\u3070\u3001\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306f\u4e0b\u304c\u308a\u7d9a\u3051\u3001\u6700\u7d42\u7684\u306b\u30d6\u30ed\u30c3\u30af\u306b\u81f3\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u52d9\u3067\u6700\u3082\u591a\u3044\u843d\u3068\u3057\u7a74\u304c<strong>\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\uff08\u6574\u5408\u6027\uff09\u306e\u4e0d\u4e00\u81f4<\/strong>\u3067\u3059\u3002\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001SPF\u3084DKIM\u81ea\u4f53\u306f\u5408\u683c\u3057\u3066\u3044\u3066\u3082\u3001\u8a8d\u8a3c\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u304cFrom\u30c9\u30e1\u30a4\u30f3\u3068\u7570\u306a\u308b\u305f\u3081\u306bDMARC\u3068\u3057\u3066\u306f\u8a55\u4fa1\u3055\u308c\u306a\u3044\u3001\u3068\u3044\u3046\u72b6\u614b\u304c\u8d77\u3053\u308a\u304c\u3061\u3067\u3059\u3002\u300c\u8a8d\u8a3c\u306f\u901a\u3063\u3066\u3044\u308b\u306f\u305a\u306a\u306e\u306b\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3055\u308c\u308b\u300d\u3068\u304d\u306f\u3001\u307e\u305a\u3053\u3053\u3092\u7591\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/dmarc-alignment\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/03\/dmarc-alignment.jpg\" alt=\"DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1fSPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2\u3084\u8a2d\u5b9a\u65b9\u6cd5\u3001\u5931\u6557\u539f\u56e0\u3068\u5bfe\u7b56\u3092\u89e3\u8aac\" width=\"90\" height=\"49\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">DMARC\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3068\u306f\uff1fSPF\u30fbDKIM\u3068\u306e\u95a2\u4fc2\u3084\u8a2d\u5b9a\u65b9\u6cd5\u3001\u5931\u6557\u539f\u56e0\u3068\u5bfe\u7b56\u3092\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3057\u3066\u300cSPF\u3092\u8a2d\u5b9a\u3057\u305f\u300d\u300cDKIM\u3082\u5c0e\u5165\u3057\u305f\u300d\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001DMARC\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u5165\u3063\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>\u7121\u52b9\u306a\u30a2\u30c9\u30ec\u30b9\u3078\u914d\u4fe1\u3092\u7d9a\u3051\u3066\u3044\u308b<\/h3>\n<p>\u5b58\u5728\u3057\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u3078\u7e70\u308a\u8fd4\u3057\u9001\u4fe1\u3059\u308b\u3068\u3001\u300c\u30ea\u30b9\u30c8\u7ba1\u7406\u304c\u3067\u304d\u3066\u3044\u306a\u3044\u9001\u4fe1\u8005\u300d\u3068\u8a55\u4fa1\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u30b9\u30d1\u30e0\u9001\u4fe1\u8005\u306e\u5178\u578b\u7684\u306a\u6319\u52d5\u3068\u3057\u3066\u6271\u308f\u308c\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>\u30cf\u30fc\u30c9\u30d0\u30a6\u30f3\u30b9\u3057\u305f\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u6b21\u56de\u914d\u4fe1\u307e\u3067\u306b\u5fc5\u305a\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u9664\u5916\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e00\u822c\u306b\u3001<strong>\u30d0\u30a6\u30f3\u30b9\u7387\u304c\u6570%\u306b\u9054\u3057\u3066\u3044\u308b\u72b6\u614b\u306f\u8a55\u4fa1\u4f4e\u4e0b\u306e\u30ea\u30b9\u30af\u304c\u9ad8\u3044<\/strong>\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u3092\u624b\u4f5c\u696d\u3067\u9664\u5916\u3057\u3066\u3044\u308b\u904b\u7528\u3067\u306f\u3001\u914d\u4fe1\u306e\u305f\u3073\u306b\u6f0f\u308c\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30b9\u30d1\u30e0\u30c8\u30e9\u30c3\u30d7\u306b\u30e1\u30fc\u30eb\u3092\u9001\u3063\u3066\u3044\u308b<\/h3>\n<p>\u30b9\u30d1\u30e0\u30c8\u30e9\u30c3\u30d7\u306f\u3001\u30b9\u30d1\u30e0\u9001\u4fe1\u8005\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u306bMicrosoft\u306a\u3069\u304c\u8a2d\u7f6e\u3057\u3066\u3044\u308b\u300c\u672c\u6765\u30e1\u30fc\u30eb\u3092\u4e00\u5207\u8cfc\u8aad\u3057\u306a\u3044\u306f\u305a\u306e\u30a2\u30c9\u30ec\u30b9\u300d\u3067\u3059\u3002\u3053\u3053\u306b1\u901a\u3067\u3082\u5c4a\u3044\u305f\u6642\u70b9\u3067\u3001\u30ea\u30b9\u30c8\u306e\u5165\u624b\u7d4c\u8def\u3068\u7ba1\u7406\u4f53\u5236\u304c\u5f37\u304f\u7591\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u30c8\u30e9\u30c3\u30d7\u304c\u6df7\u5165\u3057\u3084\u3059\u3044\u306e\u306f\u6b21\u306e\u3088\u3046\u306a\u30ea\u30b9\u30c8\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u540d\u523a\u4ea4\u63db\u3084\u30a4\u30d9\u30f3\u30c8\u53c2\u52a0\u306e\u307f\u3067\u3001\u914d\u4fe1\u540c\u610f\u3092\u53d6\u3063\u3066\u3044\u306a\u3044\u30a2\u30c9\u30ec\u30b9<\/li>\n<li>\u6570\u5e74\u9593\u307e\u3063\u305f\u304f\u53cd\u5fdc\u306e\u306a\u3044\u4f11\u7720\u30a2\u30c9\u30ec\u30b9<\/li>\n<li>\u8cfc\u5165\u30fb\u8b72\u6e21\u3055\u308c\u305f\u30ea\u30b9\u30c8<\/li>\n<li>\u9000\u4f1a\u51e6\u7406\u304c\u53cd\u6620\u3055\u308c\u3066\u3044\u306a\u3044\u53e4\u3044\u30ea\u30b9\u30c8<\/li>\n<\/ul>\n<\/div>\n<p>\u4e00\u5ea6\u30d2\u30c3\u30c8\u3059\u308b\u3068\u8a55\u4fa1\u306e\u56de\u5fa9\u306b\u9577\u3044\u6642\u9593\u304c\u304b\u304b\u308b\u305f\u3081\u3001\u4e88\u9632\u4ee5\u5916\u306b\u624b\u7acb\u3066\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\uff08\u82e6\u60c5\uff09\u304c\u591a\u767a\u3057\u3066\u3044\u308b<\/h3>\n<p>\u53d7\u4fe1\u8005\u304c\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u3057\u3066\u5831\u544a\u300d\u3092\u62bc\u3059\u5272\u5408\u304c\u9ad8\u3044\u3068\u3001\u8a55\u4fa1\u306f\u6025\u901f\u306b\u60aa\u5316\u3057\u307e\u3059\u3002Microsoft\u306f\u82e6\u60c5\u7387\u306e\u5177\u4f53\u7684\u306a\u3057\u304d\u3044\u5024\u3092\u516c\u8868\u3057\u3066\u3044\u307e\u305b\u3093\u304c\u3001Gmail\u304c\u793a\u30590.3%\u3068\u3044\u3046\u57fa\u6e96\u304c\u696d\u754c\u306e\u5171\u901a\u8a8d\u8b58\u3068\u3057\u3066\u53c2\u7167\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u82e6\u60c5\u306e\u591a\u304f\u306f\u300c\u899a\u3048\u306e\u306a\u3044\u30e1\u30fc\u30eb\u304c\u5c4a\u3044\u305f\u300d\u3053\u3068\u306b\u8d77\u56e0\u3057\u307e\u3059\u3002\u914d\u4fe1\u983b\u5ea6\u304c\u6025\u306b\u4e0a\u304c\u3063\u305f\u3001\u8cfc\u8aad\u3057\u305f\u899a\u3048\u306e\u306a\u3044\u30c6\u30fc\u30de\u306e\u30e1\u30fc\u30eb\u304c\u5c4a\u3044\u305f\u3001\u914d\u4fe1\u505c\u6b62\u30ea\u30f3\u30af\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u2014\u2014\u3053\u306e\u3044\u305a\u308c\u304b\u306b\u5fc3\u5f53\u305f\u308a\u304c\u3042\u308c\u3070\u3001\u305d\u3053\u304c\u539f\u56e0\u3067\u3059\u3002<\/p>\n<h3>\u9006\u5f15\u304d\uff08PTR\uff09\u3084TLS\u306a\u3069\u30a4\u30f3\u30d5\u30e9\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044<\/h3>\n<p>\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u76f4\u63a5\u9001\u4fe1\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u591a\u3044\u306e\u304c\u3001\u30a4\u30f3\u30d5\u30e9\u8981\u4ef6\u306e\u4e0d\u5099\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u9006\u5f15\u304dDNS\uff08PTR\u30ec\u30b3\u30fc\u30c9\uff09<\/strong>\uff1a\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u30db\u30b9\u30c8\u540d\u3092\u9006\u5f15\u304d\u3067\u304d\u306a\u3044\u3001\u307e\u305f\u306f\u6b63\u5f15\u304d\u7d50\u679c\u3068\u4e00\u81f4\u3057\u306a\u3044\u72b6\u614b\u3002\u9001\u4fe1\u5143\u306e\u8eab\u5143\u304c\u78ba\u8a8d\u3067\u304d\u306a\u3044\u305f\u3081\u8a55\u4fa1\u304c\u4e0b\u304c\u308b<\/li>\n<li><strong>TLS\u63a5\u7d9a<\/strong>\uff1a\u9001\u4fe1\u6642\u306e\u6697\u53f7\u5316\u306f\u73fe\u5728\u306e\u6a19\u6e96\u8981\u4ef6<\/li>\n<li><strong>\u6025\u6fc0\u306a\u914d\u4fe1\u91cf\u306e\u5897\u52a0<\/strong>\uff1a\u5b9f\u7e3e\u306e\u306a\u3044IP\u304b\u3089\u3044\u304d\u306a\u308a\u5927\u91cf\u914d\u4fe1\u3059\u308b\u3068\u3001\u30b9\u30d1\u30e0\u9001\u4fe1\u306e\u6319\u52d5\u3068\u533a\u5225\u304c\u3064\u304b\u306a\u3044<\/li>\n<\/ul>\n<\/div>\n<p>PTR\u30ec\u30b3\u30fc\u30c9\u306e\u8a2d\u5b9a\u306fIP\u30a2\u30c9\u30ec\u30b9\u306e\u7ba1\u7406\u8005\uff08\u591a\u304f\u306fISP\u3084\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4e8b\u696d\u8005\uff09\u5074\u306e\u4f5c\u696d\u306b\u306a\u308b\u305f\u3081\u3001\u81ea\u793e\u306eDNS\u3060\u3051\u3067\u306f\u5b8c\u7d50\u3057\u307e\u305b\u3093\u3002\u8a2d\u5b9a\u5f8c\u306f <code>nslookup<\/code>\uff08Windows\uff09\u3084 <code>dig -x<\/code>\uff08Linux\uff09\u3067\u3001\u6b63\u3057\u304f\u30db\u30b9\u30c8\u540d\u304c\u8fd4\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>Microsoft\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u89e3\u9664\u7533\u8acb\u306e\u624b\u9806<\/h2>\n<p>\u3053\u3053\u304b\u3089\u304c\u672c\u984c\u3067\u3059\u3002550 5.7.1\uff08S3150\uff09\u306a\u3069\u3067IP\u30a2\u30c9\u30ec\u30b9\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306e\u3001\u5b9f\u52d9\u7684\u306a\u89e3\u9664\u624b\u9806\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>STEP 1\uff1a\u7533\u8acb\u524d\u306b\u5fc5\u305a\u76f4\u3057\u3066\u304a\u304f3\u70b9<\/h3>\n<p>\u7533\u8acb\u30d5\u30a9\u30fc\u30e0\u306f\u300c\u539f\u56e0\u3092\u76f4\u3057\u305f\u306e\u3067\u89e3\u9664\u3057\u3066\u307b\u3057\u3044\u300d\u3068\u4f1d\u3048\u308b\u5834\u3067\u3059\u3002\u76f4\u3063\u3066\u3044\u306a\u3044\u72b6\u614b\u3067\u51fa\u3059\u3068\u5374\u4e0b\u3055\u308c\u3001\u518d\u7533\u8acb\u307e\u3067\u306e\u5fc3\u8a3c\u3082\u60aa\u304f\u306a\u308a\u307e\u3059\u3002\u6700\u4f4e\u9650\u3001\u6b21\u306e3\u70b9\u306f\u5148\u306b\u6e08\u307e\u305b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u914d\u4fe1\u3092\u4e00\u5ea6\u6b62\u3081\u308b<\/strong>\uff1a\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f\u72b6\u614b\u3067\u914d\u4fe1\u3092\u7d9a\u3051\u308b\u3068\u3001\u30a8\u30e9\u30fc\u304c\u7a4d\u307f\u4e0a\u304c\u308a\u8a55\u4fa1\u304c\u3055\u3089\u306b\u4e0b\u304c\u308b<\/li>\n<li><strong>SPF\u30fbDKIM\u30fbDMARC\u3092\u5408\u683c\u3055\u305b\u308b<\/strong>\uff1aHotmail\u5b9b\u306b\u30c6\u30b9\u30c8\u9001\u4fe1\u3057\u3001\u53d7\u4fe1\u30e1\u30fc\u30eb\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d8\u30c3\u30c0\u30fc\u306e Authentication-Results \u3067 spf=pass\u3001dkim=pass\u3001dmarc=pass \u3092\u78ba\u8a8d\u3059\u308b<\/li>\n<li><strong>\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u3068\u30ea\u30b9\u30c8\u3092\u6574\u7406\u3059\u308b<\/strong>\uff1a\u30d0\u30a6\u30f3\u30b9\u3057\u305f\u30a2\u30c9\u30ec\u30b9\u3001\u9577\u671f\u9593\u53cd\u5fdc\u306e\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u3092\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u5916\u3059<\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u306e3\u70b9\u304c\u6e08\u3093\u3067\u3044\u308c\u3070\u3001\u7533\u8acb\u6587\u306b\u66f8\u3051\u308b\u300c\u662f\u6b63\u5185\u5bb9\u300d\u304c\u5177\u4f53\u7684\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u308c\u304c\u53d7\u7406\u7387\u3092\u5927\u304d\u304f\u5de6\u53f3\u3057\u307e\u3059\u3002<\/p>\n<h3>STEP 2\uff1a\u5b9b\u5148\u306b\u5fdc\u3058\u3066\u7533\u8acb\u7a93\u53e3\u3092\u4f7f\u3044\u5206\u3051\u308b<\/h3>\n<p>Microsoft\u306e\u7533\u8acb\u7a93\u53e3\u306f\u8907\u6570\u3042\u308a\u3001<strong>\u5b9b\u5148\u304c\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u5411\u3051\u304b\u6cd5\u4eba\u5411\u3051\u304b\u3067\u4f7f\u3046\u7a93\u53e3\u304c\u5909\u308f\u308a\u307e\u3059<\/strong>\u3002\u3053\u3053\u3092\u9593\u9055\u3048\u308b\u3068\u300c\u5bfe\u8c61\u5916\u300d\u3067\u623b\u3055\u308c\u307e\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<thead>\n<tr>\n<th>\u72b6\u6cc1\u30fb\u30a8\u30e9\u30fc<\/th>\n<th>\u4f7f\u3046\u7a93\u53e3<\/th>\n<th>URL<\/th>\n<th>\u5099\u8003<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>@hotmail.com\uff0f@outlook.com\uff0f@live.com\u5b9b\u304c550 5.7.1\uff08S3150\uff09\u3067\u62d2\u5426<\/td>\n<td>Outlook.com \u30bb\u30f3\u30c0\u30fc\u30b5\u30dd\u30fc\u30c8<\/td>\n<td>olcsupport.office.com<\/td>\n<td>Hotmail\u30fbOutlook.com\u306a\u3069\u500b\u4eba\u5411\u3051\u30a2\u30ab\u30a6\u30f3\u30c8\u5b9b\u306e\u6a19\u6e96\u7a93\u53e3<\/td>\n<\/tr>\n<tr>\n<td>\u4f01\u696d\u306eMicrosoft 365\u5b9b\u304c550 5.7.606\u301c649\uff08banned sending IP\uff09\u3067\u62d2\u5426<\/td>\n<td>Office 365 \u30b9\u30d1\u30e0\u5bfe\u7b56IP\u9664\u5916\u30dd\u30fc\u30bf\u30eb<\/td>\n<td>sender.office.com<\/td>\n<td>1\u56de\u306e\u7533\u8acb\u3067\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b91\u4ef6\u30fbIP1\u4ef6\u306e\u307f\u5165\u529b\u53ef<\/td>\n<\/tr>\n<tr>\n<td>550 5.7.511\uff08banned sender\uff09\u304c\u8fd4\u308b<\/td>\n<td>\u30e1\u30fc\u30eb\u3067\u306e\u7533\u8acb<\/td>\n<td>delist@microsoft.com<\/td>\n<td>NDR\u306e\u5168\u6587\u3068IP\u30a2\u30c9\u30ec\u30b9\u3092\u6dfb\u3048\u3066\u8ee2\u9001\u300248\u6642\u9593\u4ee5\u5185\u306b\u8fd4\u4fe1<\/td>\n<\/tr>\n<tr>\n<td>\u4e0a\u8a18\u3067\u89e3\u6c7a\u3057\u306a\u3044\uff0fIP\u306f\u516c\u958b\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u8f09\u3063\u3066\u3044\u306a\u3044<\/td>\n<td>Microsoft\u30b5\u30dd\u30fc\u30c8\u8981\u6c42\u30d5\u30a9\u30fc\u30e0<\/td>\n<td>Outlook.com Postmaster\u30da\u30fc\u30b8\u306e\u554f\u3044\u5408\u308f\u305b\u5c0e\u7dda\u304b\u3089\u9077\u79fb<\/td>\n<td>\u30a8\u30b9\u30ab\u30ec\u30fc\u30b7\u30e7\u30f3\u7528\u3002Microsoft\u30a2\u30ab\u30a6\u30f3\u30c8\u3067\u306e\u30b5\u30a4\u30f3\u30a4\u30f3\u304c\u5fc5\u8981<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Hotmail\u5b9b\u306e\u4e0d\u9054\u3067\u3042\u308c\u3070\u3001\u57fa\u672c\u306f<strong>olcsupport.office.com<\/strong>\u3067\u3059\u3002sender.office.com\u306fMicrosoft 365\uff08\u6cd5\u4eba\u5411\u3051\uff09\u57fa\u76e4\u306e\u9664\u5916\u30dd\u30fc\u30bf\u30eb\u3067\u3042\u308a\u3001Hotmail\u5b9b\u306e\u7533\u8acb\u3092\u51fa\u3057\u3066\u3082\u300cIP\u306b\u554f\u984c\u306f\u898b\u3064\u304b\u3089\u306a\u3044\u300d\u3068\u8fd4\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001olcsupport.office.com\u306b\u30b5\u30a4\u30f3\u30a4\u30f3\u3059\u308b\u969b\u306f\u3001<strong>\u9023\u7d61\u5148\u3068\u3057\u3066\u4f7f\u3044\u305f\u3044\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3067\u30b5\u30a4\u30f3\u30a4\u30f3\u3057\u3066\u304f\u3060\u3055\u3044<\/strong>\u3002\u30e6\u30fc\u30b6\u30fc\u540d\u3067\u30b5\u30a4\u30f3\u30a4\u30f3\u3059\u308b\u3068\u9023\u7d61\u5148\u6b04\u304c\u81ea\u52d5\u5165\u529b\u3055\u308c\u3001\u5f8c\u304b\u3089\u5909\u66f4\u3067\u304d\u306a\u304f\u306a\u308b\u4ed5\u69d8\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>STEP 3\uff1a\u7533\u8acb\u30d5\u30a9\u30fc\u30e0\u306b\u66f8\u304f\u5185\u5bb9\u3068\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8<\/h3>\n<p>\u7533\u8acb\u6642\u306b\u5fc5\u305a\u76db\u308a\u8fbc\u3080\u3079\u304d\u60c5\u5831\u306f\u6c7a\u307e\u3063\u3066\u3044\u307e\u3059\u3002\u6b21\u306e\u8981\u7d20\u3092\u62bc\u3055\u3048\u305f\u6587\u9762\u3092\u7528\u610f\u3057\u3066\u304a\u304f\u3068\u3001\u3069\u306e\u7a93\u53e3\u3067\u3082\u6d41\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3066\u3044\u308bIP\u30a2\u30c9\u30ec\u30b9<\/li>\n<li>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\uff08NDR\uff09\u306e\u5168\u6587<\/li>\n<li>\u521d\u3081\u3066\u30a8\u30e9\u30fc\u3092\u78ba\u8a8d\u3057\u305f\u65e5\u6642<\/li>\n<li>\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u3068\u3001\u305d\u306eIP\u304b\u3089\u9001\u3063\u3066\u3044\u308b\u30e1\u30fc\u30eb\u306e\u7a2e\u985e<\/li>\n<li>\u30d6\u30ed\u30c3\u30af\u306b\u81f3\u3063\u305f\u539f\u56e0\u306e\u8aac\u660e\uff08\u6b63\u76f4\u306b\u66f8\u304f\uff09<\/li>\n<li>\u5b9f\u65bd\u6e08\u307f\u306e\u662f\u6b63\u63aa\u7f6e<\/li>\n<li>\u518d\u767a\u9632\u6b62\u306e\u305f\u3081\u306e\u904b\u7528<\/li>\n<\/ul>\n<\/div>\n<p>\u4ee5\u4e0b\u306f\u305d\u306e\u307e\u307e\u4f7f\u3048\u308b\u82f1\u6587\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3067\u3059\u3002Microsoft\u306e\u7a93\u53e3\u306f\u82f1\u8a9e\u3067\u306e\u53d7\u4ed8\u304c\u57fa\u672c\u306e\u305f\u3081\u3001\u82f1\u6587\u3067\u63d0\u51fa\u3059\u308b\u306e\u304c\u78ba\u5b9f\u3067\u3059\u3002<\/p>\n<pre>Subject: IP Delisting Request - [IP\u30a2\u30c9\u30ec\u30b9] - S3150\r\n\r\nDear Microsoft Sender Support,\r\n\r\nI am requesting delisting for IP address [xxx.xxx.xxx.xxx], which is\r\ncurrently receiving 550 5.7.1 (S3150) errors when sending to Microsoft\r\nconsumer domains.\r\n\r\n[Issue Details]\r\n- First observed: [YYYY\/MM\/DD]\r\n- Error code: 550 5.7.1 (S3150)\r\n- Affected recipient domains: hotmail.com, outlook.com, live.com\r\n- Sending domains: example.co.jp\r\n- Mail type: opt-in newsletter and transactional notifications\r\n\r\n[Full NDR]\r\n(\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u5168\u6587\u3092\u3053\u3053\u306b\u8cbc\u308a\u4ed8\u3051)\r\n\r\n[Root Cause]\r\n(\u539f\u56e0\u3092\u7c21\u6f54\u306b\u3002\u4f8b\uff1aA number of invalid addresses remained in our list\r\nand caused a high bounce rate.)\r\n\r\n[Corrective Actions Taken]\r\n1. Paused all outbound campaigns from this IP on [YYYY\/MM\/DD]\r\n2. Configured and verified SPF, DKIM and DMARC (all pass)\r\n3. Removed all hard-bounced and inactive addresses from our list\r\n4. Added a visible unsubscribe link to every message\r\n\r\n[Preventive Measures]\r\n1. Automatic suppression of bounced addresses\r\n2. Registered this IP with SNDS and JMRP for ongoing monitoring\r\n3. Gradual volume ramp-up after delisting\r\n\r\nWe would appreciate your review. Please let us know if you need any\r\nfurther information.\r\n\r\nBest regards,\r\n[\u6c0f\u540d\uff0f\u4f1a\u793e\u540d\uff0f\u9023\u7d61\u5148]<\/pre>\n<p>\u203bNDR\u306b\u53d7\u4fe1\u8005\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u304c\u542b\u307e\u308c\u308b\u5834\u5408\u306f\u3001\u539f\u56e0\u7279\u5b9a\u306b\u4e0d\u8981\u306a\u90e8\u5206\u3092\u30de\u30b9\u30ad\u30f3\u30b0\u3057\u305f\u3046\u3048\u3067\u63d0\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u539f\u56e0\u306e\u8a18\u8ff0\u3067\u898b\u6804\u3092\u5f35\u3089\u306a\u3044\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u300c\u5fc3\u5f53\u305f\u308a\u304c\u306a\u3044\u300d\u3068\u66f8\u304f\u3088\u308a\u3082\u3001<strong>\u5177\u4f53\u7684\u306a\u539f\u56e0\u3068\u3001\u305d\u308c\u306b\u5bfe\u5fdc\u3057\u305f\u5177\u4f53\u7684\u306a\u662f\u6b63\u63aa\u7f6e\u304c\u30bb\u30c3\u30c8\u3067\u793a\u3055\u308c\u3066\u3044\u308b\u307b\u3046\u304c\u53d7\u7406\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059<\/strong>\u3002<\/p>\n<h3>STEP 4\uff1a\u300c\u7de9\u548c\u63aa\u7f6e\u306e\u5bfe\u8c61\u5916\u300d\u3068\u8fd4\u3063\u3066\u304d\u305f\u3068\u304d\u306e\u5bfe\u5fdc<\/h3>\n<p>\u7533\u8acb\u3057\u3066\u3082 <code>Not qualified for mitigation<\/code>\uff08\u7de9\u548c\u63aa\u7f6e\u306e\u5bfe\u8c61\u5916\uff09\u3068\u8fd4\u7b54\u3055\u308c\u308b\u30b1\u30fc\u30b9\u304c\u5c11\u306a\u304b\u3089\u305a\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u8ae6\u3081\u308b\u4f01\u696d\u304c\u591a\u3044\u306e\u3067\u3059\u304c\u3001\u305d\u306e\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u8fd4\u4fe1\u30e1\u30fc\u30eb\u306b\u5bfe\u3057\u3066\u3001<strong>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u5168\u6587\u3001\u662f\u6b63\u63aa\u7f6e\u306e\u8a73\u7d30\u3001\u305d\u3057\u3066\u7de9\u548c\u3092\u5e0c\u671b\u3059\u308b\u65e8\u3092\u6539\u3081\u3066\u6dfb\u3048\u3066\u8fd4\u4fe1\u3059\u308b<\/strong>\u3053\u3068\u3067\u3001\u7de9\u548c\u304c\u5b9f\u65bd\u3055\u308c\u305f\u4e8b\u4f8b\u304c\u8907\u6570\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u30021\u56de\u306e\u7533\u8acb\u3067\u7d50\u8ad6\u3092\u51fa\u3055\u305a\u3001\u72b6\u6cc1\u3092\u88dc\u8db3\u3057\u3066\u518d\u4f9d\u983c\u3059\u308b\u3053\u3068\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u89e3\u9664\u304c\u53cd\u6620\u3055\u308c\u308b\u307e\u3067\u306b\u306f<strong>24\u301c48\u6642\u9593\u7a0b\u5ea6<\/strong>\u304b\u304b\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u53cd\u6620\u524d\u306b\u914d\u4fe1\u3092\u518d\u958b\u3059\u308b\u3068\u30a8\u30e9\u30fc\u304c\u518d\u3073\u7a4d\u307f\u4e0a\u304c\u308b\u305f\u3081\u3001\u53d7\u7406\u306e\u9023\u7d61\u304c\u5c4a\u304f\u307e\u3067\u306f\u914d\u4fe1\u3092\u6b62\u3081\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u5171\u6709\u30b5\u30fc\u30d0\u30fc\u5229\u7528\u6642\u306f\u81ea\u793e\u3067\u306f\u89e3\u9664\u3067\u304d\u306a\u3044<\/h3>\n<p>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306b\u8a18\u8f09\u3055\u308c\u305fIP\u30a2\u30c9\u30ec\u30b9\u304c\u5171\u7528\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u5171\u6709IP\u3060\u3063\u305f\u5834\u5408\u3001<strong>\u7533\u8acb\u3067\u304d\u308b\u306e\u306f\u305d\u306eIP\u3092\u7ba1\u7406\u3059\u308b\u4e8b\u696d\u8005\u3060\u3051<\/strong>\u3067\u3059\u3002\u81ea\u793e\u3067\u7533\u8acb\u30d5\u30a9\u30fc\u30e0\u3092\u9001\u3063\u3066\u3082\u3001IP\u306e\u7ba1\u7406\u6a29\u9650\u3092\u8a3c\u660e\u3067\u304d\u306a\u3044\u305f\u3081\u53d7\u7406\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u5834\u5408\u306b\u53d6\u308c\u308b\u624b\u6bb5\u306f3\u3064\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u4e8b\u696d\u8005\u306e\u30b5\u30dd\u30fc\u30c8\u7a93\u53e3\u306b\u3001\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u5168\u6587\u3092\u6dfb\u3048\u3066\u89e3\u9664\u7533\u8acb\u3092\u4f9d\u983c\u3059\u308b<\/li>\n<li>\u4e8b\u696d\u8005\u5074\u3067\u306e\u89e3\u9664\u304c\u96e3\u3057\u3044\u5834\u5408\u3084\u3001\u4f55\u5ea6\u3082\u518d\u767a\u3059\u308b\u5834\u5408\u306f\u3001\u914d\u4fe1\u7d4c\u8def\u305d\u306e\u3082\u306e\u3092\u5c02\u7528\u306e\u914d\u4fe1\u57fa\u76e4\u3078\u5207\u308a\u66ff\u3048\u308b<\/li>\n<li>\u5230\u9054\u7387\u3092\u91cd\u8996\u3059\u308b\u30e1\u30fc\u30eb\u3068\u3001\u793e\u5185\u5411\u3051\u306e\u30e1\u30fc\u30eb\u3067\u9001\u4fe1\u7d4c\u8def\u3092\u5206\u96e2\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u5171\u6709IP\u306e\u5dfb\u304d\u6dfb\u3048\u306f\u3001\u539f\u56e0\u304c\u81ea\u793e\u306e\u5916\u306b\u3042\u308b\u4ee5\u4e0a\u3001<strong>\u540c\u3058\u74b0\u5883\u3092\u4f7f\u3044\u7d9a\u3051\u308b\u9650\u308a\u518d\u767a\u3057\u307e\u3059<\/strong>\u3002\u4e00\u5ea6\u3067\u3082\u5dfb\u304d\u6dfb\u3048\u3092\u7d4c\u9a13\u3057\u305f\u306e\u3067\u3042\u308c\u3070\u3001\u914d\u4fe1\u7d4c\u8def\u306e\u898b\u76f4\u3057\u304c\u6700\u3082\u78ba\u5b9f\u306a\u518d\u767a\u9632\u6b62\u7b56\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>SNDS\u3067Microsoft\u304b\u3089\u306e\u8a55\u4fa1\u3092\u53ef\u8996\u5316\u3059\u308b\u30102026\u5e746\u6708\u306b\u30dd\u30fc\u30bf\u30eb\u79fb\u884c\u3011<\/h2>\n<p>\u89e3\u9664\u7533\u8acb\u306f\u5bfe\u75c7\u7642\u6cd5\u306b\u3059\u304e\u307e\u305b\u3093\u3002\u7d99\u7d9a\u7684\u306b\u5230\u9054\u7387\u3092\u5b88\u308b\u306b\u306f\u3001Microsoft\u304c\u81ea\u793e\u3092\u3069\u3046\u8a55\u4fa1\u3057\u3066\u3044\u308b\u304b\u3092\u6570\u5024\u3067\u628a\u63e1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u306e\u516c\u5f0f\u30c4\u30fc\u30eb\u304c<strong>SNDS\uff08Smart Network Data Services\uff09<\/strong>\u3067\u3059\u3002\u7121\u6599\u3067\u5229\u7528\u3067\u304d\u3001Gmail\u306b\u304a\u3051\u308b\u300cGoogle Postmaster Tools\u300d\u306eOutlook\u7248\u306b\u3042\u305f\u308a\u307e\u3059\u3002<\/p>\n<h3>SNDS\u3067\u78ba\u8a8d\u3067\u304d\u308b\u30c7\u30fc\u30bf\u3068\u8272\u8a55\u4fa1\u306e\u8aad\u307f\u65b9<\/h3>\n<p>SNDS\u306b\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u3092\u767b\u9332\u3059\u308b\u3068\u3001\u305d\u306eIP\u304b\u3089Outlook.com\u30fbHotmail\u5b9b\u306b\u9001\u3089\u308c\u305f\u30e1\u30fc\u30eb\u306b\u3064\u3044\u3066\u3001\u65e5\u6b21\u3067\u30c7\u30fc\u30bf\u3092\u78ba\u8a8d\u3067\u304d\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>\u5185\u5bb9<\/th>\n<th>\u898b\u308b\u3079\u304d\u30dd\u30a4\u30f3\u30c8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u671f\u9593<\/td>\n<td>\u305d\u306eIP\u304b\u3089\u9001\u4fe1\u304c\u78ba\u8a8d\u3055\u308c\u305f\u6642\u9593\u5e2f<\/td>\n<td>\u610f\u56f3\u3057\u306a\u3044\u6642\u9593\u5e2f\u306e\u9001\u4fe1\u306f\u4e0d\u6b63\u5229\u7528\uff08\u8e0f\u307f\u53f0\u5316\uff09\u306e\u7591\u3044<\/td>\n<\/tr>\n<tr>\n<td>RCPT\uff0fDATA\u30b3\u30de\u30f3\u30c9\u6570<\/td>\n<td>\u9001\u4fe1\u91cf\u306b\u76f8\u5f53\u3059\u308bSMTP\u30b3\u30de\u30f3\u30c9\u306e\u56de\u6570<\/td>\n<td>\u81ea\u793e\u306e\u914d\u4fe1\u5b9f\u7e3e\u3068\u4e56\u96e2\u304c\u306a\u3044\u304b<\/td>\n<\/tr>\n<tr>\n<td>\u30d5\u30a3\u30eb\u30bf\u30fc\u7d50\u679c<\/td>\n<td>\u7dd1\u30fb\u9ec4\u30fb\u8d64\u306e3\u6bb5\u968e\u3067\u30b9\u30d1\u30e0\u5224\u5b9a\u7387\u3092\u8868\u793a<\/td>\n<td>\u7dd1\u3092\u7dad\u6301\u3067\u304d\u3066\u3044\u308b\u304b\u3002\u8d64\u306f\u5927\u534a\u304c\u30b9\u30d1\u30e0\u5224\u5b9a\u3055\u308c\u3066\u3044\u308b\u5371\u967a\u4fe1\u53f7<\/td>\n<\/tr>\n<tr>\n<td>\u82e6\u60c5\u7387<\/td>\n<td>\u53d7\u4fe1\u8005\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u3057\u305f\u5272\u5408<\/td>\n<td>\u9ad8\u6b62\u307e\u308a\u3057\u3066\u3044\u308c\u3070\u30ea\u30b9\u30c8\u3068\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u898b\u76f4\u3057\u304c\u5fc5\u8981<\/td>\n<\/tr>\n<tr>\n<td>\u30c8\u30e9\u30c3\u30d7\u30d2\u30c3\u30c8\u6570<\/td>\n<td>\u30b9\u30d1\u30e0\u30c8\u30e9\u30c3\u30d7\u5b9b\u306b\u9001\u4fe1\u3055\u308c\u305f\u4ef6\u6570<\/td>\n<td>1\u4ef6\u3067\u3082\u3042\u308c\u3070\u30ea\u30b9\u30c8\u306e\u5165\u624b\u7d4c\u8def\u306b\u554f\u984c\u3042\u308a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001SNDS\u306e\u5bfe\u8c61\u306f<strong>Outlook.com\u30fbHotmail\u306a\u3069\u500b\u4eba\u5411\u3051\u30b5\u30fc\u30d3\u30b9\u5b9b\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u307f<\/strong>\u3067\u3059\u3002Microsoft 365\u306e\u4f01\u696d\u30a2\u30ab\u30a6\u30f3\u30c8\u5b9b\u306e\u30c7\u30fc\u30bf\u306f\u542b\u307e\u308c\u307e\u305b\u3093\u3002\u307e\u305f\u30011\u65e5\u3042\u305f\u308a\u306e\u9001\u4fe1\u91cf\u304c\u4e00\u5b9a\u6570\u306b\u6e80\u305f\u306a\u3044\u65e5\u306f\u30c7\u30fc\u30bf\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>2026\u5e746\u6708\u306e\u30dd\u30fc\u30bf\u30eb\u79fb\u884c\u3067\u5909\u308f\u3063\u305f\u3053\u3068<\/h3>\n<p>SNDS\u306f2026\u5e746\u6708\u306b\u3001\u9577\u5e74\u4f7f\u308f\u308c\u3066\u304d\u305f <code>sendersupport.olc.protection.outlook.com\/snds\/<\/code> \u304b\u3089\u65b0\u3057\u3044\u30dd\u30fc\u30bf\u30eb\uff08<code>https:\/\/substrate.office.com\/ip-domain-management-snds\/snds<\/code>\uff09\u3078\u79fb\u884c\u3057\u307e\u3057\u305f\u3002\u904b\u7528\u9762\u3067\u5f71\u97ff\u304c\u5927\u304d\u3044\u306e\u306f\u6b21\u306e\u70b9\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u65e7URL\u306f\u5f53\u9762\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3055\u308c\u308b\u304c\u3001\u6052\u4e45\u7684\u3067\u306f\u306a\u3044<\/strong>\u3002\u30d6\u30c3\u30af\u30de\u30fc\u30af\u3084\u793e\u5185\u624b\u9806\u66f8\u306eURL\u306f\u66f4\u65b0\u3057\u3066\u304a\u304f<\/li>\n<li><strong>\u81ea\u52d5\u30c7\u30fc\u30bf\u30a2\u30af\u30bb\u30b9\u7528\u306eURL\u306b\u6709\u52b9\u671f\u9650\u304c\u8a2d\u5b9a\u3055\u308c\u305f<\/strong>\u3002\u65e7\u4ed5\u69d8\u3067\u306f\u5b9f\u8cea\u7121\u671f\u9650\u3060\u3063\u305fCSV\u53d6\u5f97\u7528\u30ea\u30f3\u30af\u304c\u671f\u9650\u5207\u308c\u306b\u306a\u308b\u305f\u3081\u3001\u76e3\u8996\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u7d44\u3093\u3067\u3044\u308b\u5834\u5408\u306f\u5b9a\u671f\u7684\u306a\u66f4\u65b0\u304c\u5fc5\u8981<\/li>\n<li>\u65e7URL\u5f62\u5f0f\u306e\u81ea\u52d5\u30a2\u30af\u30bb\u30b9URL\u306f2026\u5e746\u670822\u65e5\u4ed8\u3067\u5ec3\u6b62\u304c\u544a\u77e5\u3055\u308c\u3066\u3044\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u793e\u5185\u3067SNDS\u306e\u30c7\u30fc\u30bf\u3092\u81ea\u52d5\u53d6\u5f97\u3057\u3066\u30ec\u30dd\u30fc\u30c8\u5316\u3057\u3066\u3044\u308b\u5834\u5408\u3001<strong>\u30ea\u30f3\u30af\u304c\u5931\u52b9\u3057\u3066\u3082\u660e\u793a\u7684\u306a\u30a2\u30e9\u30fc\u30c8\u306f\u51fa\u307e\u305b\u3093<\/strong>\u3002\u3042\u308b\u65e5\u3092\u5883\u306b\u30c7\u30fc\u30bf\u304c\u66f4\u65b0\u3055\u308c\u306a\u304f\u306a\u308a\u3001\u6c17\u3065\u3044\u305f\u3068\u304d\u306b\u306f\u8a55\u4fa1\u304c\u60aa\u5316\u3057\u3066\u3044\u308b\u3001\u3068\u3044\u3046\u4e8b\u6545\u304c\u8d77\u3053\u308a\u3084\u3059\u3044\u69cb\u9020\u3067\u3059\u3002\u53d6\u5f97\u30ea\u30f3\u30af\u306e\u6709\u52b9\u671f\u9650\u3092\u30ab\u30ec\u30f3\u30c0\u30fc\u306b\u767b\u9332\u3057\u3066\u304a\u304f\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n<h3>\u767b\u9332\u624b\u9806\u3068JMRP\u306e\u540c\u6642\u8a2d\u5b9a<\/h3>\n<p>SNDS\u306e\u5229\u7528\u306b\u306f\u3001\u6b21\u306e3\u70b9\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>Microsoft\u30a2\u30ab\u30a6\u30f3\u30c8<\/li>\n<li>\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u4f7f\u7528\u3057\u3066\u3044\u308bIPv4\u30a2\u30c9\u30ec\u30b9<\/li>\n<li>\u305d\u306eIP\u306eWHOIS\u60c5\u5831\u306b\u767b\u9332\u3055\u308c\u305f\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\uff08abuse@\u3084postmaster@\u306a\u3069\uff09\u3078\u306e\u30a2\u30af\u30bb\u30b9\u6a29<\/li>\n<\/ul>\n<\/div>\n<p>SNDS\u306e\u30dd\u30fc\u30bf\u30eb\u306b\u30b5\u30a4\u30f3\u30a4\u30f3\u3057\u3001\u300cRequest Access\u300d\u304b\u3089\u76e3\u8996\u3057\u305f\u3044IP\u30a2\u30c9\u30ec\u30b9\u3084IP\u30ec\u30f3\u30b8\u3092\u5165\u529b\u3001\u8868\u793a\u3055\u308c\u308b\u5b9b\u5148\u5019\u88dc\u304b\u3089\u78ba\u8a8d\u30e1\u30fc\u30eb\u306e\u53d7\u4fe1\u5148\u3092\u9078\u3073\u3001\u5c4a\u3044\u305f\u30ea\u30f3\u30af\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u7ba1\u7406\u6a29\u9650\u3092\u8a3c\u660e\u3059\u308c\u3070\u5b8c\u4e86\u3067\u3059\u3002\u3064\u307e\u308a<strong>\u305d\u306eIP\u306e\u6b63\u5f53\u306a\u7ba1\u7406\u8005\u3067\u3042\u308b\u3053\u3068\u3092\u8a3c\u660e\u3067\u304d\u308c\u3070\u3001\u8ab0\u3067\u3082\u7121\u6599\u3067\u4f7f\u3048\u307e\u3059<\/strong>\u3002\u88cf\u3092\u8fd4\u305b\u3070\u3001\u5171\u6709IP\u306e\u5229\u7528\u8005\u306f\u81ea\u5206\u3067\u306f\u767b\u9332\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u3042\u308f\u305b\u3066\u8a2d\u5b9a\u3057\u3066\u304a\u304d\u305f\u3044\u306e\u304c<strong>JMRP\uff08Junk Mail Reporting Program\uff09<\/strong>\u3067\u3059\u3002Outlook.com\u306e\u53d7\u4fe1\u8005\u304c\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u3092\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u300d\u3068\u3057\u3066\u5831\u544a\u3057\u305f\u969b\u306b\u3001\u305d\u306e\u5831\u544a\u3092\u53d7\u3051\u53d6\u308c\u308b\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u6a5f\u80fd\u3067\u3001SNDS\u3068\u540c\u3058\u30dd\u30fc\u30bf\u30eb\u304b\u3089\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u5831\u544a\u3057\u305f\u53d7\u4fe1\u8005\u3092\u5373\u5ea7\u306b\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u5916\u3059\u3053\u3068\u3067\u3001\u82e6\u60c5\u7387\u306e\u4e0a\u6607\u3092\u672a\u7136\u306b\u9632\u3052\u307e\u3059\u3002<\/p>\n<p>SNDS\u304c\u5b9a\u671f\u5065\u8a3a\u306a\u3089\u3001JMRP\u306f\u7570\u5e38\u306e\u5373\u6642\u901a\u77e5\u3067\u3059\u3002<strong>\u4e21\u65b9\u3092\u30bb\u30c3\u30c8\u3067\u904b\u7528\u3057\u3066\u306f\u3058\u3081\u3066\u3001Hotmail\u5b9b\u306e\u914d\u4fe1\u54c1\u8cea\u3092\u7ba1\u7406\u3067\u304d\u308b\u72b6\u614b\u306b\u306a\u308a\u307e\u3059<\/strong>\u3002<\/p>\n<h2>\u89e3\u9664\u5f8c\u306b\u518d\u30d6\u30ed\u30c3\u30af\u3055\u305b\u306a\u304490\u65e5\u30ed\u30fc\u30c9\u30de\u30c3\u30d7<\/h2>\n<p>\u89e3\u9664\u3055\u308c\u3066\u3082\u3001\u904b\u7528\u304c\u5909\u308f\u3089\u306a\u3051\u308c\u3070\u518d\u3073\u30d6\u30ed\u30c3\u30af\u3055\u308c\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30af\u306e\u89e3\u9664\u304c\u53cd\u6620\u3055\u308c\u305f\u65e5\u3092\u8d77\u70b9\u306b\u3001\u6b21\u306e\u9806\u5e8f\u3067\u7acb\u3066\u76f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>STEP 1\uff1a\u6700\u521d\u306e2\u9031\u9593\u306f\u914d\u4fe1\u91cf\u3092\u7d5e\u308b<\/h3>\n<p>\u30d6\u30ed\u30c3\u30af\u89e3\u9664\u76f4\u5f8c\u306eIP\u30a2\u30c9\u30ec\u30b9\u306f\u3001Microsoft\u304b\u3089\u898b\u308c\u3070\u300c\u904e\u53bb\u306b\u554f\u984c\u304c\u8a18\u9332\u3055\u308c\u3066\u3044\u308bIP\u300d\u3067\u3059\u3002\u3044\u304d\u306a\u308a\u4ee5\u524d\u3068\u540c\u3058\u91cf\u3092\u9001\u308c\u3070\u3001\u518d\u5ea6\u30b9\u30d1\u30e0\u7684\u306a\u6319\u52d5\u3068\u5224\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u914d\u4fe1\u5bfe\u8c61\u3092<strong>\u76f4\u8fd13\u304b\u6708\u4ee5\u5185\u306b\u958b\u5c01\u307e\u305f\u306f\u30af\u30ea\u30c3\u30af\u306e\u3042\u308b\u30a2\u30c9\u30ec\u30b9\u3060\u3051\u306b\u7d5e\u308a\u3001\u901a\u5e38\u306e2\u301c3\u5272\u7a0b\u5ea6\u306e\u91cf\u304b\u3089\u518d\u958b<\/strong>\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u53cd\u5fdc\u306e\u3088\u3044\u5c64\u3060\u3051\u306b\u9001\u308b\u3053\u3068\u3067\u3001\u958b\u5c01\u7387\u30fb\u30af\u30ea\u30c3\u30af\u7387\u304c\u9ad8\u304f\u3001\u82e6\u60c5\u7387\u304c\u4f4e\u3044\u3068\u3044\u3046\u300c\u826f\u3044\u5b9f\u7e3e\u300d\u3092\u5148\u306b\u7a4d\u307f\u4e0a\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u306e2\u9031\u9593\u3067SNDS\u306e\u30d5\u30a3\u30eb\u30bf\u30fc\u7d50\u679c\u304c\u7dd1\u3092\u7dad\u6301\u3067\u304d\u3066\u3044\u308c\u3070\u3001\u6bb5\u968e\u7684\u306b\u91cf\u3092\u623b\u3057\u3066\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3>STEP 2\uff1a30\u65e5\u3067\u8a8d\u8a3c\u3068\u30ea\u30b9\u30c8\u306e\u70b9\u691c\u3092\u4ed5\u7d44\u307f\u306b\u3059\u308b<\/h3>\n<p>\u518d\u767a\u306e\u5927\u534a\u306f\u3001\u5c5e\u4eba\u7684\u306a\u904b\u7528\u306b\u8d77\u56e0\u3057\u307e\u3059\u3002\u6b21\u306e\u9805\u76ee\u3092\u6708\u6b21\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u843d\u3068\u3057\u8fbc\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>SPF\u30fbDKIM\u30fbDMARC\u306e\u8a8d\u8a3c\u7d50\u679c\u3092\u3001\u5b9f\u969b\u306e\u53d7\u4fe1\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u3067\u78ba\u8a8d\u3059\u308b<\/li>\n<li>SPF\u30ec\u30b3\u30fc\u30c9\u306eDNS\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u56de\u6570\u304c10\u56de\u3092\u8d85\u3048\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3059\u308b\uff08\u8d85\u904e\u3059\u308b\u3068\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u307e\u3059\uff09<\/li>\n<li>\u30cf\u30fc\u30c9\u30d0\u30a6\u30f3\u30b9\u3057\u305f\u30a2\u30c9\u30ec\u30b9\u304c\u78ba\u5b9f\u306b\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u9664\u5916\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b<\/li>\n<li>\u914d\u4fe1\u505c\u6b62\u30ea\u30f3\u30af\u304c\u6b63\u3057\u304f\u6a5f\u80fd\u3057\u3001\u89e3\u9664\u304c\u5373\u6642\u53cd\u6620\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b<\/li>\n<li>JMRP\u3067\u5831\u544a\u3055\u308c\u305f\u53d7\u4fe1\u8005\u3092\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u9664\u5916\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u7279\u306bSPF\u306e\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u56de\u6570\u306f\u3001\u914d\u4fe1\u30c4\u30fc\u30eb\u3084\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3073\u306b\u5897\u3048\u3066\u3044\u304d\u307e\u3059\u3002<strong>\u30c4\u30fc\u30eb\u30921\u3064\u8ffd\u52a0\u3057\u305f\u3089\u5fc5\u305aSPF\u3092\u518d\u78ba\u8a8d\u3059\u308b<\/strong>\u3068\u3044\u3046\u30eb\u30fc\u30eb\u3092\u6c7a\u3081\u3066\u304a\u304f\u3068\u4e8b\u6545\u3092\u9632\u3052\u307e\u3059\u3002<\/p>\n<h3>STEP 3\uff1a90\u65e5\u3067\u76e3\u8996\u3092\u6307\u6a19\u5316\u3059\u308b<\/h3>\n<p>3\u304b\u6708\u304c\u7d4c\u904e\u3057\u305f\u3089\u3001\u5358\u767a\u306e\u78ba\u8a8d\u304b\u3089\u7d99\u7d9a\u7684\u306a\u76e3\u8996\u306b\u79fb\u884c\u3057\u307e\u3059\u3002\u6700\u4f4e\u9650\u8ffd\u3044\u305f\u3044\u6307\u6a19\u306f\u6b21\u306e4\u3064\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>SNDS\u306e\u30d5\u30a3\u30eb\u30bf\u30fc\u7d50\u679c\uff08\u7dd1\u30fb\u9ec4\u30fb\u8d64\uff09\u306e\u63a8\u79fb<\/li>\n<li>\u82e6\u60c5\u7387\u3068\u30c8\u30e9\u30c3\u30d7\u30d2\u30c3\u30c8\u6570<\/li>\n<li>\u30c9\u30e1\u30a4\u30f3\u5225\uff08hotmail.com\uff0foutlook.com\uff0fgmail.com \u306a\u3069\uff09\u306e\u30d0\u30a6\u30f3\u30b9\u7387<\/li>\n<li>\u914d\u4fe1\u505c\u6b62\u7387<\/li>\n<\/ul>\n<\/div>\n<p>\u30c9\u30e1\u30a4\u30f3\u5225\u306b\u6570\u5024\u3092\u5206\u3051\u3066\u898b\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<strong>\u5168\u4f53\u306e\u5230\u9054\u7387\u306f\u554f\u984c\u306a\u3044\u306e\u306bHotmail\u5b9b\u3060\u3051\u60aa\u5316\u3057\u3066\u3044\u308b<\/strong>\u3068\u3044\u3046\u72b6\u6cc1\u306f\u3001\u5408\u7b97\u3057\u305f\u6570\u5024\u3092\u898b\u3066\u3044\u308b\u3060\u3051\u3067\u306f\u7d76\u5bfe\u306b\u6c17\u3065\u3051\u307e\u305b\u3093\u3002\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u52b9\u679c\u6e2c\u5b9a\u6a5f\u80fd\u3067\u30c9\u30e1\u30a4\u30f3\u5225\u306e\u96c6\u8a08\u304c\u53d6\u308c\u308b\u306a\u3089\u3001\u305d\u308c\u3092\u6708\u6b21\u30ec\u30dd\u30fc\u30c8\u306e\u5b9a\u756a\u9805\u76ee\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>Hotmail\u5b9b\u306e\u5230\u9054\u7387\u3092\u6839\u672c\u304b\u3089\u6539\u5584\u3059\u308b\u306a\u3089\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u6d3b\u7528\u3059\u308b<\/h2>\n<p>\u3053\u3053\u307e\u3067\u898b\u3066\u304d\u305f\u3088\u3046\u306b\u3001Hotmail\u5b9b\u306e\u5230\u9054\u7387\u3092\u5b88\u308b\u306b\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3001IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u7dad\u6301\u3001\u30ea\u30b9\u30c8\u54c1\u8cea\u306e\u7ba1\u7406\u3001\u30a8\u30e9\u30fc\u51e6\u7406\u3001SNDS\u306b\u3088\u308b\u76e3\u8996\u3068\u3044\u3046\u591a\u5c64\u7684\u306a\u5bfe\u7b56\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u308c\u3089\u3092\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u3084\u5171\u7528\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u904b\u7528\u3057\u7d9a\u3051\u308b\u306e\u306f\u3001\u5c02\u4efb\u306e\u6280\u8853\u8005\u304c\u3044\u3066\u3082\u5bb9\u6613\u3067\u306f\u3042\u308a\u307e\u305b\u3093\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\u3001Microsoft\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u4e3b\u8981\u30e1\u30fc\u30eb\u30d7\u30ed\u30d0\u30a4\u30c0\u3078\u300c\u5c4a\u3051\u308b\u3053\u3068\u300d\u306b\u7279\u5316\u3057\u305f\u914d\u4fe1\u57fa\u76e4\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u5bfe\u7b56\u3068\u3044\u3046\u89b3\u70b9\u3067\u306f\u3001\u6b21\u306e3\u70b9\u304c\u6c7a\u5b9a\u7684\u306a\u9055\u3044\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u5171\u6709IP\u306e\u5dfb\u304d\u6dfb\u3048\u30ea\u30b9\u30af\u3092\u907f\u3051\u3089\u308c\u308b<\/strong>\uff1a\u914d\u4fe1\u4e8b\u696d\u8005\u304c\u8a55\u4fa1\u3092\u7dad\u6301\u30fb\u76e3\u8996\u3057\u3066\u3044\u308bIP\u30a2\u30c9\u30ec\u30b9\u7fa4\u304b\u3089\u914d\u4fe1\u3059\u308b\u305f\u3081\u3001\u7121\u95a2\u4fc2\u306a\u30b9\u30d1\u30e0\u9001\u4fe1\u8005\u3068\u540c\u5c45\u3059\u308b\u30ea\u30b9\u30af\u304c\u306a\u3044<\/li>\n<li><strong>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3078\u306e\u5bfe\u5fdc\u304c\u5bb9\u6613<\/strong>\uff1aSPF\u30fbDKIM\u30fbDMARC\u306b\u5bfe\u5fdc\u3057\u305f\u914d\u4fe1\u74b0\u5883\u3092\u3001\u5c02\u9580\u77e5\u8b58\u304c\u5c11\u306a\u304f\u3066\u3082\u6574\u3048\u3089\u308c\u308b<\/li>\n<li><strong>\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u306e\u81ea\u52d5\u51e6\u7406<\/strong>\uff1a\u30d0\u30a6\u30f3\u30b9\u3057\u305f\u30a2\u30c9\u30ec\u30b9\u3092\u81ea\u52d5\u3067\u691c\u77e5\u30fb\u9664\u5916\u3067\u304d\u3001\u9ad8\u30d0\u30a6\u30f3\u30b9\u7387\u306b\u3088\u308b\u8a55\u4fa1\u4f4e\u4e0b\u3092\u69cb\u9020\u7684\u306b\u9632\u3052\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u300c\u30e1\u30fc\u30eb\u3092\u4f5c\u3063\u3066\u9001\u308b\u300d\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u300c\u5c4a\u304d\u7d9a\u3051\u308b\u72b6\u614b\u3092\u7dad\u6301\u3059\u308b\u300d\u305f\u3081\u306e\u4ed5\u7d44\u307f\u304c\u63c3\u3063\u3066\u3044\u308b\u70b9\u304c\u3001\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u9001\u4fe1\u3068\u306e\u6c7a\u5b9a\u7684\u306a\u5dee\u3067\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\u3084API\u3067\u9023\u643a\u3059\u308b\u3053\u3068\u3067\u3001\u4e00\u6589\u914d\u4fe1\u3084\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u306e\u901a\u77e5\u30e1\u30fc\u30eb\u3092\u9ad8\u901f\u304b\u3064\u5b89\u5b9a\u3057\u3066\u914d\u4fe1\u3067\u304d\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u904b\u7528\u30fb\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306fblastengine\u5074\u3067\u884c\u3046\u305f\u3081\u3001IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u7ba1\u7406\u3084\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u5bfe\u5fdc\u3068\u3044\u3063\u305f\u8ca0\u8377\u306e\u5927\u304d\u3044\u696d\u52d9\u304b\u3089\u89e3\u653e\u3055\u308c\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>99%\u4ee5\u4e0a\u306e\u9ad8\u3044\u30e1\u30fc\u30eb\u5230\u9054\u7387<\/strong>\uff1a\u56fd\u5185\u30ad\u30e3\u30ea\u30a2\u30fbISP\u3078\u306e\u500b\u5225\u9001\u4fe1\u30ed\u30b8\u30c3\u30af\u306b\u3088\u308a\u3001Hotmail\u30fbOutlook\u5b9b\u306e\u5230\u9054\u7387\u5411\u4e0a\u306b\u5bfe\u5fdc<\/li>\n<li><strong>IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u7ba1\u7406<\/strong>\uff1ablastengine\u5074\u3067\u9001\u4fe1\u74b0\u5883\u3092\u904b\u7528\u30fb\u76e3\u8996\u3059\u308b\u305f\u3081\u3001\u5171\u7528\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u3088\u3046\u306a\u5dfb\u304d\u6dfb\u3048\u30d6\u30ed\u30c3\u30af\u306e\u30ea\u30b9\u30af\u3092\u907f\u3051\u3089\u308c\u308b<\/li>\n<li><strong>SPF\uff0fDKIM\uff0fDMARC\u5bfe\u5fdc<\/strong>\uff1aOutlook\u306e\u9001\u4fe1\u8005\u8981\u4ef6\u3067\u5fc5\u9808\u3068\u306a\u3063\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u6a19\u6e96\u5bfe\u5fdc<\/li>\n<li><strong>\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u81ea\u52d5\u5bfe\u5fdc<\/strong>\uff1a\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u306e\u7ba1\u7406\u3092\u81ea\u52d5\u5316\u3057\u3001\u9ad8\u30d0\u30a6\u30f3\u30b9\u7387\u306b\u3088\u308b\u8a55\u4fa1\u4f4e\u4e0b\u3092\u9632\u3050<\/li>\n<li><strong>\u914d\u4fe1\u30ed\u30b0\u7ba1\u7406<\/strong>\uff1a\u5b9b\u5148\u3054\u3068\u306e\u914d\u4fe1\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u78ba\u8a8d\u3067\u304d\u3001\u30c9\u30e1\u30a4\u30f3\u5225\u306e\u30a8\u30e9\u30fc\u50be\u5411\u3092\u8ffd\u8de1\u3067\u304d\u308b<\/li>\n<li><strong>\u65e5\u672c\u8a9e\u30c6\u30af\u30cb\u30ab\u30eb\u30b5\u30dd\u30fc\u30c8<\/strong>\uff1a\u96fb\u8a71\u30fb\u30e1\u30fc\u30eb\u3067\u65e5\u672c\u8a9e\u306e\u307e\u307e\u76f8\u8ac7\u3067\u304d\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u3084\u5171\u7528\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u914d\u4fe1\u3067Hotmail\u5b9b\u306e\u30d6\u30ed\u30c3\u30af\u3092\u7e70\u308a\u8fd4\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u914d\u4fe1\u7d4c\u8def\u305d\u306e\u3082\u306e\u3092\u5207\u308a\u66ff\u3048\u308b\u306e\u304c\u6700\u3082\u78ba\u5b9f\u306a\u518d\u767a\u9632\u6b62\u7b56\u3067\u3059\u3002\u521d\u671f\u8cbb\u7528\u306f\u7121\u6599\u3001\u6708\u984d3,000\u5186\u304b\u3089\u5229\u7528\u3067\u304d\u3001\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\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>\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u516c\u5f0f\u30b5\u30a4\u30c8\uff1ahttps:\/\/blastengine.jp\/<\/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>\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\uff08blastmail\uff09\u306f\u300115\u5e74\u9023\u7d9a\u3067\u5c0e\u5165\u793e\u6570\u30b7\u30a7\u30a2No.1\u3092\u7372\u5f97\u3057\u3066\u3044\u308b\u56fd\u5185\u6700\u5927\u7d1a\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002\u5c0e\u5165\u5b9f\u7e3e27,000\u793e\u4ee5\u4e0a\u306b\u88cf\u6253\u3061\u3055\u308c\u305f\u914d\u4fe1\u57fa\u76e4\u3068\u3001\u5c02\u9580\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u76f4\u611f\u7684\u306b\u64cd\u4f5c\u3067\u304d\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u7ba1\u7406\u753b\u9762\u304c\u7279\u5fb4\u3067\u3001\u30e1\u30eb\u30de\u30ac\u306a\u3069\u306e\u4e00\u6589\u914d\u4fe1\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li><strong>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u5bfe\u7b56\uff08SPF\uff0fDKIM\uff09<\/strong>\uff1aOutlook\u306e\u9001\u4fe1\u8005\u8981\u4ef6\u3067\u3082\u5fc5\u9808\u3068\u306a\u3063\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u5bfe\u5fdc<\/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\u30ea\u30b9\u30c8\u54c1\u8cea\u306e\u7ba1\u7406\u306b\u6d3b\u304b\u305b\u308b<\/li>\n<li><strong>\u30d5\u30a3\u30eb\u30bf\u914d\u4fe1\uff08\u30bb\u30b0\u30e1\u30f3\u30c8\u914d\u4fe1\uff09<\/strong>\uff1a\u53cd\u5fdc\u306e\u3042\u308b\u8aad\u8005\u306b\u7d5e\u3063\u305f\u914d\u4fe1\u304c\u3067\u304d\u3001\u82e6\u60c5\u7387\u306e\u6291\u5236\u306b\u3064\u306a\u304c\u308b<\/li>\n<li><strong>\u767b\u9332\u89e3\u9664\u30d5\u30a9\u30fc\u30e0\u4f5c\u6210<\/strong>\uff1a\u914d\u4fe1\u505c\u6b62\u306e\u5c0e\u7dda\u3092\u6574\u5099\u3067\u304d\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u306e\u4ee3\u308f\u308a\u306b\u89e3\u9664\u3078\u8a98\u5c0e\u3067\u304d\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u30d6\u30ed\u30c3\u30af\u89e3\u9664\u5f8c\u306b\u914d\u4fe1\u91cf\u3092\u7d5e\u3063\u3066\u518d\u958b\u3059\u308b\u904b\u7528\u3068\u3082\u76f8\u6027\u304c\u3088\u304f\u3001\u30bb\u30b0\u30e1\u30f3\u30c8\u914d\u4fe1\u3067\u30a8\u30f3\u30b2\u30fc\u30b8\u30e1\u30f3\u30c8\u306e\u9ad8\u3044\u5c64\u304b\u3089\u6bb5\u968e\u7684\u306b\u91cf\u3092\u623b\u3057\u3066\u3044\u3051\u307e\u3059\u3002\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u307e\u305a\u306f\u64cd\u4f5c\u611f\u3092\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\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\">Hotmail\u3068Outlook.com\u306f\u5225\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u5b9f\u8cea\u7684\u306b\u540c\u3058\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002Hotmail\u306f2013\u5e74\u4ee5\u964dOutlook.com\u306b\u7d71\u5408\u3055\u308c\u3066\u304a\u308a\u3001@hotmail.com\u306a\u3069\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u5f15\u304d\u7d9a\u304d\u4f7f\u3048\u308b\u3060\u3051\u3067\u3001\u53d7\u4fe1\u57fa\u76e4\u3082\u30d5\u30a3\u30eb\u30bf\u30fc\u3082\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u3082Outlook.com\u3068\u5171\u901a\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001Hotmail\u5b9b\u306e\u4e0d\u9054\u5bfe\u7b56\u306fOutlook.com\u5b9b\u306e\u5bfe\u7b56\u3068\u307e\u3063\u305f\u304f\u540c\u3058\u624b\u9806\u3067\u9032\u3081\u3089\u308c\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">550 5.7.1\uff08S3150\uff09\u3068550 5.7.515\u306f\u4f55\u304c\u9055\u3044\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a550 5.7.1\uff08S3150\uff09\u306f\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u304cMicrosoft\u306e\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u72b6\u614b\u3067\u3001\u89e3\u9664\u306b\u306fMicrosoft\u3078\u306e\u7533\u8acb\u304c\u5fc5\u8981\u3067\u3059\u3002\u4e00\u65b9550 5.7.515\u306f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff08SPF\u30fbDKIM\u30fbDMARC\uff09\u304c\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044\u72b6\u614b\u3067\u3001DNS\u30ec\u30b3\u30fc\u30c9\u306e\u4fee\u6b63\u3060\u3051\u3067\u81ea\u529b\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002\u7533\u8acb\u306e\u8981\u5426\u304c\u6b63\u53cd\u5bfe\u306a\u306e\u3067\u3001\u307e\u305a\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/dd>\n<dt class=\"blog-faq__question\">\u30d6\u30ed\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u89e3\u9664\u7533\u8acb\u306f\u3069\u3053\u304b\u3089\u884c\u3044\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a@hotmail.com\u30fb@outlook.com\u306a\u3069\u500b\u4eba\u5411\u3051\u30a2\u30ab\u30a6\u30f3\u30c8\u5b9b\u306e\u4e0d\u9054\u3067\u3042\u308c\u3070\u3001Outlook.com\u306e\u30bb\u30f3\u30c0\u30fc\u30b5\u30dd\u30fc\u30c8\uff08olcsupport.office.com\uff09\u304c\u6a19\u6e96\u306e\u7a93\u53e3\u3067\u3059\u3002\u4f01\u696d\u306eMicrosoft 365\u5b9b\u3067banned sending IP\u306e\u30a8\u30e9\u30fc\u304c\u51fa\u3066\u3044\u308b\u5834\u5408\u306f\u3001Office 365\u30b9\u30d1\u30e0\u5bfe\u7b56IP\u9664\u5916\u30dd\u30fc\u30bf\u30eb\uff08sender.office.com\uff09\u3092\u4f7f\u3044\u307e\u3059\u3002\u5b9b\u5148\u306e\u7a2e\u985e\u3067\u7a93\u53e3\u304c\u5909\u308f\u308b\u70b9\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/dd>\n<dt class=\"blog-faq__question\">\u89e3\u9664\u7533\u8acb\u304c\u300c\u5bfe\u8c61\u5916\u300d\u3068\u8fd4\u7b54\u3055\u308c\u307e\u3057\u305f\u3002\u3082\u3046\u6253\u3064\u624b\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u3042\u308a\u307e\u3059\u30021\u56de\u76ee\u306e\u7533\u8acb\u306f\u81ea\u52d5\u5224\u5b9a\u306b\u8fd1\u3044\u51e6\u7406\u306e\u305f\u3081\u3001\u8fd4\u4fe1\u30e1\u30fc\u30eb\u306b\u5bfe\u3057\u3066\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u5168\u6587\u3001\u5b9f\u65bd\u6e08\u307f\u306e\u662f\u6b63\u63aa\u7f6e\u3001\u7de9\u548c\u3092\u5e0c\u671b\u3059\u308b\u65e8\u3092\u6539\u3081\u3066\u6dfb\u3048\u3066\u8fd4\u4fe1\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u518d\u4f9d\u983c\u3067\u7de9\u548c\u304c\u5b9f\u65bd\u3055\u308c\u305f\u4e8b\u4f8b\u304c\u8907\u6570\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u306a\u304a\u89e3\u9664\u306e\u53cd\u6620\u306b\u306f24\u301c48\u6642\u9593\u7a0b\u5ea6\u304b\u304b\u308a\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u5171\u6709IP\u3067\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f\u5834\u5408\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u5171\u6709IP\u306e\u89e3\u9664\u7533\u8acb\u304c\u3067\u304d\u308b\u306e\u306fIP\u3092\u7ba1\u7406\u3059\u308b\u4e8b\u696d\u8005\u3060\u3051\u306a\u306e\u3067\u3001\u307e\u305a\u306f\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u30b5\u30dd\u30fc\u30c8\u7a93\u53e3\u306b\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u5168\u6587\u3092\u6dfb\u3048\u3066\u4f9d\u983c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305f\u3060\u3057\u540c\u3058\u74b0\u5883\u3092\u4f7f\u3044\u7d9a\u3051\u308b\u9650\u308a\u3001\u4ed6\u306e\u5229\u7528\u8005\u306e\u5f71\u97ff\u3067\u518d\u767a\u3059\u308b\u53ef\u80fd\u6027\u304c\u6b8b\u308a\u307e\u3059\u3002\u5230\u9054\u7387\u3092\u91cd\u8996\u3059\u308b\u30e1\u30fc\u30eb\u306b\u3064\u3044\u3066\u306f\u3001\u914d\u4fe1\u7d4c\u8def\u3092\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3078\u5207\u308a\u66ff\u3048\u308b\u306e\u304c\u78ba\u5b9f\u3067\u3059\u3002<\/dd>\n<\/dl><\/div>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>Hotmail\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u3068\u304d\u3001\u5bfe\u5fdc\u306f\u6b21\u306e\u9806\u5e8f\u3067\u9032\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u6709\u7121\u3092\u78ba\u8a8d\u3057\u3001\u30b3\u30fc\u30c9\u304b\u3089\u539f\u56e0\u3092\u7279\u5b9a\u3059\u308b<\/li>\n<li>550 5.7.515\u306a\u3089\u3001SPF\u30fbDKIM\u30fbDMARC\u306e\u4fee\u6b63\u3067\u81ea\u529b\u89e3\u6c7a\u3059\u308b<\/li>\n<li>550 5.7.1\uff08S3150\uff09\u306a\u3089\u3001\u539f\u56e0\u3092\u662f\u6b63\u3057\u305f\u3046\u3048\u3067olcsupport.office.com\u304b\u3089\u89e3\u9664\u7533\u8acb\u3059\u308b<\/li>\n<li>\u5171\u6709IP\u306e\u5dfb\u304d\u6dfb\u3048\u306a\u3089\u3001\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u4e8b\u696d\u8005\u306b\u4f9d\u983c\u3059\u308b\u304b\u3001\u914d\u4fe1\u7d4c\u8def\u3092\u5207\u308a\u66ff\u3048\u308b<\/li>\n<li>\u89e3\u9664\u5f8c\u306fSNDS\u3068JMRP\u306b\u767b\u9332\u3057\u3001\u914d\u4fe1\u91cf\u3092\u7d5e\u3063\u3066\u6bb5\u968e\u7684\u306b\u623b\u3059<\/li>\n<\/ul>\n<\/div>\n<p>\u307e\u305a\u4eca\u65e5\u3084\u308b\u3079\u304d\u3053\u3068\u306f\u3001<strong>\u76f4\u8fd1\u306e\u914d\u4fe1\u3067Hotmail\u30fbOutlook\u30c9\u30e1\u30a4\u30f3\u5b9b\u306e\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u51fa\u3066\u3044\u306a\u3044\u304b\u3092\u914d\u4fe1\u30ed\u30b0\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068<\/strong>\u3067\u3059\u3002\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u3055\u3048\u5206\u304b\u308c\u3070\u3001\u3053\u306e\u8a18\u4e8b\u306e\u3069\u306e\u624b\u9806\u306b\u9032\u3080\u3079\u304d\u304b\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002\u305d\u306e\u3046\u3048\u3067\u3001\u5171\u6709IP\u304b\u3089\u306e\u914d\u4fe1\u3092\u7d9a\u3051\u3066\u3044\u308b\u306e\u3067\u3042\u308c\u3070\u3001\u518d\u767a\u3092\u5f85\u305f\u305a\u306b\u914d\u4fe1\u7d4c\u8def\u306e\u898b\u76f4\u3057\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u203bMicrosoft\u3001Outlook\u3001Hotmail\u3001Microsoft 365\u306f\u3001\u7c73\u56fdMicrosoft Corporation\u306e\u7c73\u56fd\u304a\u3088\u3073\u305d\u306e\u4ed6\u306e\u56fd\u306b\u304a\u3051\u308b\u767b\u9332\u5546\u6a19\u307e\u305f\u306f\u5546\u6a19\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u300c@hotmail.com \u306e\u304a\u5ba2\u69d8\u306b\u3060\u3051\u3001\u30e1\u30eb\u30de\u30ac\u304c\u5c4a\u3044\u3066\u3044\u306a\u3044\u3089\u3057\u3044\u300d\u300c\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306b bloc&#8230;<\/p>\n","protected":false},"author":8,"featured_media":22752,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7],"tags":[],"class_list":["post-22750","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\" 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