{"id":58,"date":"2019-03-22T13:26:14","date_gmt":"2019-03-22T04:26:14","guid":{"rendered":"https:\/\/blastmail.jp\/blog\/?p=58"},"modified":"2026-08-04T18:13:01","modified_gmt":"2026-08-04T09:13:01","slug":"blacklist","status":"publish","type":"post","link":"https:\/\/blastmail.jp\/blog\/spam\/blacklist","title":{"rendered":"\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u306e\u306f\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u304c\u539f\u56e0\uff1f\u78ba\u8a8d\u3059\u308b\u624b\u9806\u3068Spamhaus\u89e3\u9664\u65b9\u6cd5"},"content":{"rendered":"<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"640\" height=\"427\" class=\"wp-image-88\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2019\/03\/img01-1.jpg\" alt=\"\" \/><\/figure>\n<p><strong>\u30e1\u30fc\u30eb\u306e\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3068\u306f\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u3068\u3057\u3066\u767b\u9332\u3055\u308c\u305fIP\u30a2\u30c9\u30ec\u30b9\u3084\u30c9\u30e1\u30a4\u30f3\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u3059\u3002<\/strong>\u4e16\u754c\u4e2d\u306e\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304c\u3001\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u53d6\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u3068\u304d\u306b\u53c2\u7167\u3057\u3066\u3044\u307e\u3059\u3002DNSBL\u3084RBL\u3068\u3082\u547c\u3070\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u3053\u306b\u767b\u9332\u3055\u308c\u308b\u3068\u3001\u591a\u304f\u306e\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30e1\u30fc\u30eb\u305d\u306e\u3082\u306e\u3092\u53d7\u3051\u53d6\u308a\u307e\u305b\u3093\u3002\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u3082\u6b8b\u3089\u306a\u3044\u305f\u3081\u3001<strong>\u76f8\u624b\u306b\u306f\u30e1\u30fc\u30eb\u304c\u9001\u3089\u308c\u305f\u3053\u3068\u81ea\u4f53\u304c\u4f1d\u308f\u3089\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/strong>\u60aa\u610f\u304c\u306a\u304f\u3066\u3082\u3001\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u3078\u306e\u914d\u4fe1\u3092\u653e\u7f6e\u3057\u3066\u3044\u305f\u3001\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u306e\u4ed6\u306e\u5229\u7528\u8005\u304c\u30b9\u30d1\u30e0\u3092\u9001\u3063\u3066\u3044\u305f\u3001\u3068\u3044\u3063\u305f\u7406\u7531\u3067\u767b\u9332\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u4ed5\u7d44\u307f\u3068\u78ba\u8a8d\u65b9\u6cd5\u3001Spamhaus\u306e\u89e3\u9664\u7533\u8acb\u624b\u9806\u3001\u518d\u767b\u9332\u3092\u9632\u3050\u904b\u7528\u307e\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2023\/01\/bm_banner_big_mailsystem_1200x628.png\" alt=\"blastmail\u306e\u30d0\u30ca\u30fc\" width=\"1200\" height=\"629\" class=\"alignnone wp-image-19829 size-full\" \/><\/a><\/p>\n<h2>\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u304a\u3051\u308b\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\uff08DNSBL\uff09\u3068\u306f<\/h2>\n<p>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u904b\u55b6\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u306e\u5c02\u9580\u56e3\u4f53\u3084\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u88fd\u54c1\u3092\u63d0\u4f9b\u3059\u308b\u4f01\u696d\u3067\u3059\u3002\u4e16\u754c\u4e2d\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u7ba1\u7406\u8005\u304c\u3001\u305d\u306e\u30c7\u30fc\u30bf\u3092\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306b\u7d44\u307f\u8fbc\u3093\u3067\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30e1\u30fc\u30eb\u306e\u63a5\u7d9a\u3092\u53d7\u3051\u4ed8\u3051\u305f\u6642\u70b9\u3067\u3001\u9001\u4fe1\u5143\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u30ea\u30b9\u30c8\u306b\u8f09\u3063\u3066\u3044\u306a\u3044\u304b\u3092\u7167\u4f1a\u3057\u307e\u3059\u3002<strong>\u30e1\u30fc\u30eb\u306e\u4e2d\u8eab\u3092\u8aad\u3080\u524d\u306b\u5224\u5b9a\u304c\u7d42\u308f\u308b\u305f\u3081\u3001\u5224\u65ad\u306e\u6750\u6599\u306b\u306a\u308b\u306e\u306f\u9001\u4fe1\u5143\u3060\u3051\u3067\u3059\u3002<\/strong><\/p>\n<h3>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u308b\u3068\u4f55\u304c\u8d77\u304d\u308b\u304b<\/h3>\n<p>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306f\u3001\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304c\u5224\u5b9a\u306b\u4f7f\u3046\u300c\u6750\u6599\u300d\u3067\u3042\u3063\u3066\u3001\u51e6\u7406\u305d\u306e\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<strong>\u540c\u3058\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u3066\u3082\u3001\u305d\u306e\u30ea\u30b9\u30c8\u3092\u3069\u3046\u4f7f\u3046\u304b\u306f\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u8a2d\u5b9a\u6b21\u7b2c<\/strong>\u3067\u3001\u7d50\u679c\u306f\u6b21\u306e3\u901a\u308a\u306b\u5206\u304b\u308c\u307e\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<tbody>\n<tr>\n<th>\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u6271\u3044<\/th>\n<th>\u8d77\u304d\u308b\u3053\u3068<\/th>\n<th>\u9001\u4fe1\u5074\u304b\u3089\u898b\u3048\u308b\u3082\u306e<\/th>\n<\/tr>\n<tr>\n<td>\u63a5\u7d9a\u306e\u6bb5\u968e\u3067\u62d2\u5426\u3059\u308b<\/td>\n<td>\u30e1\u30fc\u30eb\u306f\u53d7\u3051\u53d6\u3089\u308c\u305a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u3082\u6b8b\u3089\u306a\u3044<\/td>\n<td>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u306e\u6750\u6599\u306e\u3072\u3068\u3064\u3068\u3057\u3066\u4f7f\u3046<\/td>\n<td>\u30e1\u30fc\u30eb\u306f\u53d7\u3051\u53d6\u3089\u308c\u305f\u3046\u3048\u3067\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u308b<\/td>\n<td>\u4f55\u3082\u8fd4\u3089\u306a\u3044\uff08\u9001\u4fe1\u306f\u6210\u529f\u3068\u3057\u3066\u8a18\u9332\u3055\u308c\u308b\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u305d\u306e\u30ea\u30b9\u30c8\u3092\u53c2\u7167\u3057\u3066\u3044\u306a\u3044<\/td>\n<td>\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044<\/td>\n<td>\u4f55\u3082\u8fd4\u3089\u306a\u3044<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Spamhaus\u306e\u3088\u3046\u306b\u53c2\u7167\u7bc4\u56f2\u306e\u5e83\u3044\u30ea\u30b9\u30c8\u306f\u3001\u63a5\u7d9a\u306e\u6bb5\u968e\u3067\u62d2\u5426\u3059\u308b\u8a2d\u5b9a\u3067\u4f7f\u308f\u308c\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u3053\u306e\u5834\u5408\u306f\u53d7\u4fe1\u8005\u5074\u304b\u3089\u9001\u3089\u308c\u305f\u3053\u3068\u81ea\u4f53\u304c\u5206\u304b\u308a\u307e\u305b\u3093\u3002\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u306e\u6750\u6599\u3068\u3057\u3066\u4f7f\u3046\u8a2d\u5b9a\u3067\u3042\u308c\u3070\u3001\u53d7\u4fe1\u8005\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3092\u63a2\u305b\u3070\u30e1\u30fc\u30eb\u306f\u898b\u3064\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u9001\u4fe1\u5074\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u306e\u306f\u3001<strong>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u308b\u306e\u306f1\u3064\u76ee\u306e\u30b1\u30fc\u30b9\u3060\u3051<\/strong>\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u3063\u3066\u3044\u306a\u3044\u304b\u3089\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3068\u306f\u7121\u95a2\u4fc2\u3001\u3068\u306f\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h3>\u5c4a\u304b\u306a\u3044\u75c7\u72b6\u304b\u3089\u3001\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u304c\u539f\u56e0\u304b\u3092\u898b\u5206\u3051\u308b<\/h3>\n<p>\u75c7\u72b6\u306b\u3088\u3063\u3066\u3001\u7591\u3046\u3079\u304d\u539f\u56e0\u306f\u6b21\u306e\u3088\u3046\u306b\u5206\u304b\u308c\u307e\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<tbody>\n<tr>\n<th>\u75c7\u72b6<\/th>\n<th>\u8003\u3048\u3089\u308c\u308b\u539f\u56e0<\/th>\n<\/tr>\n<tr>\n<td>\u3069\u306e\u5b9b\u5148\u306b\u3082\u5c4a\u304b\u306a\u3044\uff0f\u5927\u91cf\u306b\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u308b<\/td>\n<td>\u9001\u4fe1\u5143\u306eIP\u30a2\u30c9\u30ec\u30b9\u3084\u30c9\u30e1\u30a4\u30f3\u304c\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b<\/td>\n<\/tr>\n<tr>\n<td>Gmail\u5b9b\u3060\u3051\u3001Outlook\u5b9b\u3060\u3051\u5c4a\u304b\u306a\u3044<\/td>\n<td>\u305d\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u5074\u3067\u306e\u9001\u4fe1\u8005\u8a55\u4fa1\u306e\u4f4e\u4e0b\u3001\u9001\u4fe1\u8005\u8981\u4ef6\u3078\u306e\u672a\u5bfe\u5fdc<\/td>\n<\/tr>\n<tr>\n<td>\u7279\u5b9a\u306e1\u4ef6\u3060\u3051\u5c4a\u304b\u306a\u3044<\/td>\n<td>\u5b9b\u5148\u306e\u5165\u529b\u30df\u30b9\u3001\u53d7\u4fe1\u5074\u306e\u5bb9\u91cf\u30aa\u30fc\u30d0\u30fc\u3001\u53d7\u4fe1\u62d2\u5426\u8a2d\u5b9a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u3069\u306e\u5b9b\u5148\u306b\u3082\u5c4a\u304b\u305a\u3001\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u5927\u91cf\u306b\u8fd4\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u9001\u4fe1\u5143\u306eIP\u30a2\u30c9\u30ec\u30b9\u3084\u30c9\u30e1\u30a4\u30f3\u304c\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>Gmail\u3084Outlook\u306f\u3001\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3088\u308a\u3082\u3001\u81ea\u793e\u3067\u7b97\u51fa\u3057\u305f\u9001\u4fe1\u8005\u306e\u8a55\u4fa1\u3092\u91cd\u8996\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u7279\u5b9a\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u5b9b\u3060\u3051\u5c4a\u304b\u306a\u3044\u5834\u5408\u306f\u3001\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u4ee5\u5916\u306e\u539f\u56e0\u3092\u5148\u306b\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p>\u7279\u5b9a\u306e1\u4ef6\u3060\u3051\u5c4a\u304b\u306a\u3044\u5834\u5408\u306f\u3001\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3067\u306f\u306a\u304f\u5b9b\u5148\u5074\u306e\u4e8b\u60c5\u3067\u3042\u308b\u3053\u3068\u304c\u307b\u3068\u3093\u3069\u3067\u3059\u3002\u3053\u306e\u30b1\u30fc\u30b9\u306f\u3001\u8fd4\u3063\u3066\u304d\u305f\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u3092\u8aad\u3081\u3070\u539f\u56e0\u3092\u7d5e\u308a\u8fbc\u3081\u307e\u3059\u30021\u901a\u305a\u3064\u306e\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u3068\u304d\u306e\u539f\u56e0\u3068\u5bfe\u51e6\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/no-delivery\/how-to-resend-faild-email\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2019\/12\/man-in-blue-and-brown-plaid-dress-shirt-touching-his-hair-897817.jpg\" alt=\"\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u30449\u3064\u306e\u7406\u7531\u3068\u89e3\u6c7a\u7b56\uff5c\u53d7\u4fe1\u8005\u3068\u9001\u4fe1\u8005\u304c\u78ba\u8a8d\u3059\u3079\u304d\u3053\u3068\" width=\"90\" height=\"60\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u30449\u3064\u306e\u7406\u7531\u3068\u89e3\u6c7a\u7b56\uff5c\u53d7\u4fe1\u8005\u3068\u9001\u4fe1\u8005\u304c\u78ba\u8a8d\u3059\u3079\u304d\u3053\u3068<\/div>\n    <div class=\"blogcard_excerpt\">\u30e1\u30fc\u30eb\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u4e2d\u3067\u3001\u300c\u9001\u3063\u305f\u30e1\u30fc\u30eb\u304c\u76f8\u624b\u306b\u5c4a\u304b\u306a\u3044\u300d\u307e\u305f\u306f\u300c\u9001\u3089\u308c\u305f\u306f\u305a\u306e\u30e1\u30fc\u30eb\u304c\u3069\u3053\u306b\u3082\u898b\u5f53\u305f\u3089\u306a\u3044\u300d\u3068\u3044\u3063\u305f\u7d4c\u9a13\u3092\u3057\u305f\u3053\u3068\u304c\u3042\u308b\u65b9\u3082\u591a\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>\u767b\u9332\u3055\u308c\u308b\u5bfe\u8c61\u306f2\u3064\u3042\u308b\uff5cIP\u30a2\u30c9\u30ec\u30b9\u3068\u30c9\u30e1\u30a4\u30f3<\/h3>\n<p>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u308b\u306e\u306f\u3001\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u305f\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5dee\u51fa\u4eba\u306e\u30c9\u30e1\u30a4\u30f3\u3084\u3001\u672c\u6587\u306b\u8cbc\u3063\u305fURL\u306e\u30c9\u30e1\u30a4\u30f3\u3082\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002<strong>\u3053\u306e2\u3064\u306f\u5225\u3005\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u7ba1\u7406\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u78ba\u8a8d\u3082\u89e3\u9664\u3082\u305d\u308c\u305e\u308c\u5fc5\u8981\u3067\u3059\u3002<\/strong><\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<tbody>\n<tr>\n<th>\u7a2e\u985e<\/th>\n<th>\u5bfe\u8c61<\/th>\n<th>\u4ee3\u8868\u4f8b<\/th>\n<th>\u5f71\u97ff\u304c\u51fa\u308b\u7bc4\u56f2<\/th>\n<\/tr>\n<tr>\n<td>IP\u30a2\u30c9\u30ec\u30b9\u306e\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8<\/td>\n<td>\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u305f\u30b5\u30fc\u30d0\u30fc\u306e\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9<\/td>\n<td>Spamhaus SBL\u30fbCSS\u30fbXBL\u30fbPBL\u3001Barracuda<\/td>\n<td>\u305d\u306e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u308b\u3059\u3079\u3066\u306e\u30e1\u30fc\u30eb<\/td>\n<\/tr>\n<tr>\n<td>\u30c9\u30e1\u30a4\u30f3\u306e\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\uff08RHSBL\uff09<\/td>\n<td>\u5dee\u51fa\u4eba\u306e\u30c9\u30e1\u30a4\u30f3\u3001\u672c\u6587\u4e2d\u306eURL\u306e\u30c9\u30e1\u30a4\u30f3<\/td>\n<td>Spamhaus DBL<\/td>\n<td>\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u3092\u5909\u3048\u3066\u3082\u5f71\u97ff\u304c\u7d9a\u304f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a55\u4fa1\u306b\u554f\u984c\u304c\u306a\u304f\u3066\u3082\u3001\u672c\u6587\u306e\u30ea\u30f3\u30af\u5148\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u767b\u9332\u3055\u308c\u3066\u3044\u308c\u3070\u62d2\u5426\u3055\u308c\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u304c\u8d77\u3053\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30c9\u30e1\u30a4\u30f3\u5074\u306e\u767b\u9332\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u3092\u79fb\u3057\u3066IP\u30a2\u30c9\u30ec\u30b9\u304c\u5909\u308f\u3063\u3066\u3082\u5f15\u304d\u7d99\u304c\u308c\u307e\u3059\u3002<\/p>\n<h3>\u4e3b\u8981\u306a\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3068\u89e3\u9664\u306e\u53ef\u5426<\/h3>\n<p>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u904b\u55b6\u3057\u3066\u3044\u308b\u56e3\u4f53\u306f100\u3092\u8d85\u3048\u307e\u3059\u304c\u3001\u5b9f\u52d9\u3067\u5f71\u97ff\u304c\u5927\u304d\u3044\u3082\u306e\u306f\u9650\u3089\u308c\u307e\u3059\u3002\u3069\u306e\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u305f\u304b\u306b\u3088\u3063\u3066\u3001\u89e3\u9664\u306e\u624b\u9806\u3068\u96e3\u6613\u5ea6\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<tbody>\n<tr>\n<th>\u540d\u79f0<\/th>\n<th>\u5bfe\u8c61<\/th>\n<th>\u53c2\u7167\u3055\u308c\u308b\u7bc4\u56f2<\/th>\n<th>\u89e3\u9664\u306e\u65b9\u6cd5<\/th>\n<\/tr>\n<tr>\n<td>Spamhaus<\/td>\n<td>IP\u30a2\u30c9\u30ec\u30b9\u30fb\u30c9\u30e1\u30a4\u30f3<\/td>\n<td>\u6700\u3082\u5e83\u3044<\/td>\n<td>\u516c\u5f0f\u30b5\u30a4\u30c8\u304b\u3089\u7533\u8acb\uff08\u30ea\u30b9\u30c8\u306e\u7a2e\u985e\u306b\u3088\u308a\u624b\u9806\u304c\u7570\u306a\u308b\uff09<\/td>\n<\/tr>\n<tr>\n<td>Barracuda Reputation Block List<\/td>\n<td>IP\u30a2\u30c9\u30ec\u30b9<\/td>\n<td>\u5e83\u3044<\/td>\n<td>\u5c02\u7528\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u89e3\u9664\u4f9d\u983c<\/td>\n<\/tr>\n<tr>\n<td>SpamCop\uff08SCBL\uff09<\/td>\n<td>IP\u30a2\u30c9\u30ec\u30b9<\/td>\n<td>\u4e2d\u7a0b\u5ea6<\/td>\n<td>\u89e3\u9664\u7533\u8acb\u306e\u7a93\u53e3\u306f\u306a\u3044\u3002\u65b0\u305f\u306a\u5831\u544a\u304c\u306a\u3051\u308c\u3070\u7d0424\u6642\u9593\u3067\u81ea\u52d5\u7684\u306b\u89e3\u9664\u3055\u308c\u308b<\/td>\n<\/tr>\n<tr>\n<td>Invaluement<\/td>\n<td>IP\u30a2\u30c9\u30ec\u30b9\u30fb\u30c9\u30e1\u30a4\u30f3<\/td>\n<td>\u4e2d\u7a0b\u5ea6<\/td>\n<td>\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u7167\u4f1a\u3057\u3001\u6307\u793a\u3055\u308c\u305f\u4ef6\u540d\u3067\u30e1\u30fc\u30eb\u3092\u9001\u4fe1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><a href=\"https:\/\/www.spamhaus.org\/\" target=\"_blank\" rel=\"noopener\">Spamhaus<\/a>\u306f\u4e16\u754c\u4e2d\u306e\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304c\u53c2\u7167\u3057\u3066\u304a\u308a\u3001\u767b\u9332\u3055\u308c\u308b\u3068\u5230\u9054\u7387\u304c\u5927\u304d\u304f\u4e0b\u304c\u308a\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u304b\u3064\u3066\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u305fSORBS\u306f\u3001\u904b\u55b6\u5143\u306eProofpoint\u306b\u3088\u308a2024\u5e746\u67085\u65e5\u306b\u505c\u6b62\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5<\/h2>\n<p>\u3053\u3053\u3067\u78ba\u8a8d\u3059\u308b\u306e\u306f\u9001\u4fe1\u5074\u3001\u3064\u307e\u308a<strong>\u81ea\u793e\u304c\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u4f7f\u3063\u3066\u3044\u308b\u30b5\u30fc\u30d0\u30fc\u306e\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3068\u3001\u5dee\u51fa\u4eba\u306b\u4f7f\u3063\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3<\/strong>\u3067\u3059\u3002\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u9001\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u9001\u4fe1\u7528\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u3001\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3084\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u7d4c\u7531\u3067\u9001\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u4e8b\u696d\u8005\u304c\u4f7f\u3063\u3066\u3044\u308b\u9001\u4fe1IP\u30a2\u30c9\u30ec\u30b9\u304c\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002\u9001\u4fe1IP\u30a2\u30c9\u30ec\u30b9\u304c\u5206\u304b\u3089\u306a\u3044\u3068\u304d\u306f\u3001\u5b9f\u969b\u306b\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u306b\u3042\u308b\u300cReceived\u300d\u306e\u884c\u304b\u3089\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30c4\u30fc\u30eb\u3054\u3068\u306b\u53c2\u7167\u3057\u3066\u3044\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u9055\u3046\u305f\u3081\u3001\u3044\u304f\u3064\u304b\u306e\u30c4\u30fc\u30eb\u3067\u78ba\u8a8d\u3059\u308b\u3068\u7cbe\u5ea6\u304c\u4e0a\u304c\u308a\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u3092\u77ed\u6642\u9593\u306b\u7d9a\u3051\u3066\u958b\u304f\u3068\u3001\u81ea\u52d5\u30a2\u30af\u30bb\u30b9\u3068\u307f\u306a\u3055\u308c\u3066\u7d50\u679c\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u306f\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30a6\u30a3\u30f3\u30c9\u30a6\uff08\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30d6\u30e9\u30a6\u30b8\u30f3\u30b0\uff09\u3067\u958b\u304d\u76f4\u3059\u3068\u901a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>MxToolbox<\/h3>\n<p>\u30b5\u30fc\u30d0\u30fc\u76e3\u8996\u30fb\u8a3a\u65ad\u30c4\u30fc\u30eb\u3068\u3057\u3066\u4e16\u754c\u7684\u306b\u4f7f\u308f\u308c\u3066\u3044\u308b\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002100\u7a2e\u985e\u4ee5\u4e0a\u306e\u4e3b\u8981\u306a\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u4e00\u62ec\u3067\u30b9\u30ad\u30e3\u30f3\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>IP\u30a2\u30c9\u30ec\u30b9\u307e\u305f\u306f\u30c9\u30e1\u30a4\u30f3\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u5404\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\uff08OK\u304bListed\u304b\uff09\u304c\u4e00\u89a7\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u3069\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u304b\u304c\u5206\u304b\u308b\u305f\u3081\u3001\u554f\u984c\u306e\u5207\u308a\u5206\u3051\u306b\u5411\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/mxtoolbox.com\/blacklists.aspx\" target=\"_blank\" rel=\"noopener\">MxToolbox Blacklist Check<\/a><\/p>\n<h3>DNSChecker<\/h3>\n<p>IP\u30a2\u30c9\u30ec\u30b9\u306e\u307b\u304b\u3001\u30c9\u30e1\u30a4\u30f3\u3084\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u3082\u63b2\u8f09\u72b6\u6cc1\u3092\u8abf\u3079\u3089\u308c\u308b\u30c4\u30fc\u30eb\u3067\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u3092\u5165\u529b\u3057\u305f\u5834\u5408\u306fA\u30ec\u30b3\u30fc\u30c9\u3068MX\u30ec\u30b3\u30fc\u30c9\u306e\u3069\u3061\u3089\u3092\u5bfe\u8c61\u306b\u3059\u308b\u304b\u3092\u9078\u3079\u308b\u305f\u3081\u3001\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u3068\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u3092\u5206\u3051\u3066\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/dnschecker.org\/ip-blacklist-checker.php\" target=\"_blank\" rel=\"noopener\">DNSChecker IP Blacklist Check<\/a><\/p>\n<h3>Spamhaus IP and Domain Reputation Checker<\/h3>\n<p>MxToolbox\u3068DNSChecker\u304c\u591a\u6570\u306e\u30ea\u30b9\u30c8\u3092\u6a2a\u65ad\u7684\u306b\u8abf\u3079\u308b\u30c4\u30fc\u30eb\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001\u3053\u3061\u3089\u306fSpamhaus\u304c\u63d0\u4f9b\u3057\u3066\u3044\u308b\u516c\u5f0f\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n<p>Spamhaus\u306f<strong>SBL\u30fbCSS\u30fbXBL\u30fbPBL\u30fbDBL\u3068\u3044\u3046\u6027\u8cea\u306e\u7570\u306a\u308b\u8907\u6570\u306e\u30ea\u30b9\u30c8\u3067\u69cb\u6210<\/strong>\u3055\u308c\u3066\u304a\u308a\u3001\u3069\u308c\u306b\u767b\u9332\u3055\u308c\u305f\u304b\u3067\u89e3\u9664\u306e\u624b\u9806\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u3053\u306e\u30c4\u30fc\u30eb\u3067\u306f\u3001\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u30ea\u30b9\u30c8\u540d\u3068\u767b\u9332\u7406\u7531\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u4ed6\u306e\u30c4\u30fc\u30eb\u3067\u554f\u984c\u304c\u306a\u304f\u3066\u3082Spamhaus\u306b\u3060\u3051\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/check.spamhaus.org\/\" target=\"_blank\" rel=\"noopener\">Spamhaus IP and Domain Reputation Checker<\/a><\/p>\n<h3>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\uff08\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\uff09\u304b\u3089\u7279\u5b9a\u3059\u308b<\/h3>\n<p>\u8fd4\u3063\u3066\u304d\u305f\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u672c\u6587\u306b\u306f\u3001\u62d2\u5426\u3057\u305f\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304c\u53c2\u7167\u3057\u305f\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u540d\u524d\u3068URL\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30c4\u30fc\u30eb\u3067\u63a2\u3059\u3088\u308a\u65e9\u304f\u539f\u56e0\u306b\u305f\u3069\u308a\u7740\u3051\u308b\u305f\u3081\u3001\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u624b\u5143\u306b\u3042\u308b\u5834\u5408\u306f\u307e\u305a\u672c\u6587\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070 <span style=\"background: #f2f2f2; padding: .1em .4em; border-radius: 3px; font-family: monospace; font-size: .95em;\">550 5.7.1 Service unavailable; Client host [xxx.xxx.xxx.xxx] blocked using zen.spamhaus.org<\/span> \u306e\u3088\u3046\u306b\u3001\u30ea\u30b9\u30c8\u306e\u540d\u79f0\u304c\u305d\u306e\u307e\u307e\u66f8\u304b\u308c\u307e\u3059\u3002\u3053\u306e\u4f8b\u306b\u3042\u308b\u300czen.spamhaus.org\u300d\u306f\u3001Spamhaus\u306eIP\u5411\u30514\u30ea\u30b9\u30c8\uff08SBL\u30fbCSS\u30fbXBL\u30fbPBL\uff09\u3092\u307e\u3068\u3081\u3066\u7167\u4f1a\u3059\u308b\u305f\u3081\u306e\u540d\u524d\u3067\u3059\u3002\u3069\u306e\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u304b\u307e\u3067\u306f\u5206\u304b\u3089\u306a\u3044\u305f\u3081\u3001\u30c1\u30a7\u30c3\u30ab\u30fc\u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u6587\u8a00\u3084SMTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e\u8aad\u307f\u65b9\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u4e00\u89a7\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/no-delivery\/mail-error\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2020\/04\/mail-error-2.jpg\" alt=\"\u30e1\u30fc\u30eb\u914d\u4fe1\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u30fb\u5bfe\u51e6\u6cd5\u4e00\u89a7\uff01\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u5225\u306e\u5bfe\u51e6\u6cd5\u3068\u5230\u9054\u7387\u3092\u4e0a\u3052\u308b\u65b9\u6cd5\" width=\"90\" height=\"60\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u30e1\u30fc\u30eb\u914d\u4fe1\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u30fb\u5bfe\u51e6\u6cd5\u4e00\u89a7\uff01\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u5225\u306e\u5bfe\u51e6\u6cd5\u3068\u5230\u9054\u7387\u3092\u4e0a\u3052\u308b\u65b9\u6cd5<\/div>\n    <div class=\"blogcard_excerpt\">\u300c\u9001\u3063\u305f\u306f\u305a\u306e\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u300d\u300c\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u8fd4\u3063\u3066\u304d\u305f\u304c\u610f\u5473\u304c\u5206\u304b\u3089\u306a\u3044\u300d\u3002 \u30e1\u30fc\u30eb\u914d\u4fe1\u30a8\u30e9\u30fc\u306f\u3001\u62c5\u5f53\u8005\u3067\u3042\u308c\u3070\u8ab0\u3082\u304c\u4e00\u5ea6\u306f\u76f4\u9762\u3059\u308b\u30c8\u30e9\u30d6\u30eb\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>\u30e1\u30fc\u30eb\u914d\u4fe1\u5143\u304c\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u308b3\u3064\u306e\u539f\u56e0<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2019\/03\/img03.jpg\" alt=\"SPAM\u30e1\u30fc\u30eb\u306e\u30a4\u30e1\u30fc\u30b8\u753b\u50cf\" class=\"alignnone size-full\" \/><\/p>\n<p>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3078\u306e\u767b\u9332\u306b\u306f\u3001\u5f15\u304d\u91d1\u306b\u306a\u3063\u305f\u914d\u4fe1\u304c\u3042\u308a\u307e\u3059\u3002\u3069\u308c\u306b\u5f53\u3066\u306f\u307e\u308b\u304b\u306b\u3088\u3063\u3066\u3001\u76f4\u3059\u7b87\u6240\u3082\u5909\u308f\u308a\u307e\u3059\u3002\u3088\u304f\u3042\u308b\u5f15\u304d\u91d1\u306f\u6b21\u306e3\u3064\u3067\u3059\u3002<\/p>\n<h3>\u2460\u9001\u308a\u65b9\u304c\u4e0d\u5be9\u3068\u5224\u65ad\u3055\u308c\u3066\u3044\u308b<\/h3>\n<p>\u30b9\u30d1\u30e0\u696d\u8005\u3068\u4f3c\u305f\u9001\u308a\u65b9\u3060\u3068\u5224\u65ad\u3055\u308c\u308b\u3068\u3001\u767b\u9332\u306e\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002\u4ee3\u8868\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u914d\u4fe1\u5b9f\u7e3e\u306e\u306a\u3044IP\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u3001\u3044\u304d\u306a\u308a\u5927\u91cf\u306e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b<\/li>\n<li>\u5b58\u5728\u3057\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u5b9b\u306e\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\uff08\u4e0d\u9054\u30a8\u30e9\u30fc\uff09\u304c\u5927\u91cf\u306b\u767a\u751f\u3057\u3066\u3044\u308b<\/li>\n<li>\u30b9\u30d1\u30e0\u30c8\u30e9\u30c3\u30d7\uff08\u53d7\u4fe1\u5c02\u7528\u306b\u7528\u610f\u3055\u308c\u305f\u30a2\u30c9\u30ec\u30b9\u3084\u3001\u4f7f\u308f\u308c\u306a\u304f\u306a\u3063\u305f\u30a2\u30c9\u30ec\u30b9\u3092\u518d\u5229\u7528\u3057\u305f\u3082\u306e\uff09\u306b\u30e1\u30fc\u30eb\u3092\u9001\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u3068\u304f\u306b\u30d0\u30a6\u30f3\u30b9\u306e\u591a\u767a\u306f\u3001\u914d\u4fe1\u30ea\u30b9\u30c8\u306e\u7ba1\u7406\u304c\u8ffd\u3044\u3064\u3044\u3066\u3044\u306a\u3044\u5834\u5408\u306b\u8d77\u304d\u3084\u3059\u3044\u554f\u984c\u3067\u3059\u3002\u30a8\u30e9\u30fc\u306b\u306a\u3063\u305f\u30a2\u30c9\u30ec\u30b9\u3092\u653e\u7f6e\u3057\u305f\u307e\u307e\u914d\u4fe1\u3092\u7d9a\u3051\u308b\u3068\u3001\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u5074\u304b\u3089\u653b\u6483\u3068\u307f\u306a\u3055\u308c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u30b9\u30d1\u30e0\u30c8\u30e9\u30c3\u30d7\u306f\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u696d\u8005\u3060\u3051\u3092\u6355\u6349\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u9000\u4f1a\u3084\u7570\u52d5\u3067\u4f7f\u308f\u308c\u306a\u304f\u306a\u3063\u305f\u30a2\u30c9\u30ec\u30b9\u304c\u4e00\u5b9a\u671f\u9593\u5f8c\u306b\u30c8\u30e9\u30c3\u30d7\u3078\u8ee2\u7528\u3055\u308c\u308b\u30b1\u30fc\u30b9\u304c\u3042\u308a\u3001<strong>\u53e4\u3044\u914d\u4fe1\u30ea\u30b9\u30c8\u3092\u66f4\u65b0\u305b\u305a\u306b\u4f7f\u3044\u7d9a\u3051\u3066\u3044\u308b\u9001\u4fe1\u8005\u3082\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002<\/strong><\/p>\n<p>\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a55\u4fa1\u304c\u3069\u306e\u3088\u3046\u306b\u6c7a\u307e\u308b\u304b\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\/spam\/ip-reputation\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2026\/03\/ip-reputation.jpg\" alt=\"IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u5230\u9054\u7387\u3092\u6539\u5584\u3059\u308b5\u3064\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u89e3\u8aac\" width=\"90\" height=\"49\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u3068\u306f\uff1f\u30e1\u30fc\u30eb\u5230\u9054\u7387\u3092\u6539\u5584\u3059\u308b5\u3064\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">\u30e1\u30eb\u30de\u30ac\u3084\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u4e00\u751f\u61f8\u547d\u4f5c\u308a\u8fbc\u3093\u3067\u3044\u308b\u306e\u306b\u3001\u306a\u305c\u304b\u958b\u5c01\u7387\u304c\u4e0a\u304c\u3089\u306a\u3044\u3002\u9867\u5ba2\u306b\u5c4a\u3044\u3066\u3044\u308b\u306f\u305a\u306e\u30e1\u30fc\u30eb\u304c\u3001\u6c17\u3065\u3051\u3070\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>\u2461\u53d7\u4fe1\u8005\u304b\u3089\u300c\u8ff7\u60d1\u300d\u3068\u5224\u65ad\u3055\u308c\u3066\u3044\u308b<\/h3>\n<p>\u9001\u4fe1\u5143\u306e\u8a2d\u5b9a\u3084\u9001\u308a\u65b9\u306b\u554f\u984c\u304c\u306a\u304f\u3066\u3082\u3001\u53d7\u4fe1\u8005\u304c\u300c\u3053\u306e\u30e1\u30fc\u30eb\u306f\u8ff7\u60d1\u3060\u300d\u3068\u5224\u65ad\u3059\u308c\u3070\u8a55\u4fa1\u306f\u4e0b\u304c\u308a\u307e\u3059\u3002\u6700\u3082\u76f4\u63a5\u7684\u306a\u6307\u6a19\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u7387\u3067\u3001\u53d7\u4fe1\u8005\u304c\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u300d\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u305f\u5272\u5408\u304c\u9ad8\u3044\u3068\u3001\u9001\u4fe1\u5143\u30c9\u30e1\u30a4\u30f3\u5168\u4f53\u306e\u8a55\u4fa1\u304c\u4f4e\u4e0b\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u30e1\u30fc\u30eb\u672c\u6587\u306b\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u30b5\u30a4\u30c8\u3078\u306e\u30ea\u30f3\u30af\u3084\u5371\u967a\u3068\u5224\u5b9a\u3055\u308c\u305fURL\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u3082\u3001\u30d6\u30ed\u30c3\u30af\u306e\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002<strong>\u77ed\u7e2eURL\u3084\u5916\u90e8\u306e\u5e83\u544a\u30ea\u30f3\u30af\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u767b\u9332\u3055\u308c\u3066\u3044\u308c\u3070\u81ea\u793e\u306e\u30e1\u30fc\u30eb\u3082\u5dfb\u304d\u6dfb\u3048\u306b\u306a\u308a\u307e\u3059\u3002<\/strong><\/p>\n<h3>\u2462\u9001\u4fe1\u5143\u306e\u8a2d\u5b9a\u306b\u554f\u984c\u304c\u3042\u308b<\/h3>\n<p>\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u304c\u300c\u4f55\u8005\u306a\u306e\u304b\u300d\u3092\u8a3c\u660e\u3067\u304d\u306a\u3044\u5834\u5408\u3001\u306a\u308a\u3059\u307e\u3057\u306e\u7591\u3044\u3092\u304b\u3051\u3089\u308c\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001SPF\u30fbDKIM\u30fbDMARC\u3068\u3044\u3063\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u304c\u672a\u8a2d\u5b9a\u3067\u3042\u308b\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u9006\u5f15\u304dDNS\uff08PTR\u30ec\u30b3\u30fc\u30c9\uff09\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u3001\u3068\u3044\u3063\u305f\u30b1\u30fc\u30b9\u3067\u3059\u3002<\/p>\n<p>2024\u5e74\u4ee5\u964d\u3001Gmail\u3084Microsoft\u306f\u4e00\u5b9a\u91cf\u4ee5\u4e0a\u3092\u9001\u308b\u9001\u4fe1\u8005\u306b\u5bfe\u3057\u3066\u3053\u308c\u3089\u306e\u8a8d\u8a3c\u3092\u8981\u4ef6\u3068\u3057\u3066\u304a\u308a\u3001\u672a\u5bfe\u5fdc\u306e\u307e\u307e\u914d\u4fe1\u3092\u7d9a\u3051\u308b\u3068\u4e0d\u9054\u30a8\u30e9\u30fc\u304c\u5897\u52a0\u3057\u307e\u3059\u3002SPF\u30fbDKIM\u30fbDMARC\u306e\u4ed5\u7d44\u307f\u3068\u8a2d\u5b9a\u65b9\u6cd5\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u306b\u307e\u3068\u3081\u3066\u3044\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<h2>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u89e3\u9664\u65b9\u6cd5\uff5cSpamhaus\u306e\u7533\u8acb\u624b\u9806<\/h2>\n<p>\u89e3\u9664\u306e\u65b9\u6cd5\u306f\u30ea\u30b9\u30c8\u3054\u3068\u306b\u9055\u3046\u305f\u3081\u3001MxToolbox\u3084DNSChecker\u3067\u3069\u306e\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u305f\u3046\u3048\u3067\u3001\u305d\u306e\u30ea\u30b9\u30c8\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u624b\u7d9a\u304d\u3057\u307e\u3059\u3002<\/p>\n<p>\u7533\u8acb\u306e\u524d\u306b\u3001\u539f\u56e0\u306b\u306a\u3063\u305f\u914d\u4fe1\u3092\u6b62\u3081\u3066\u304a\u304d\u307e\u3059\u3002Spamhaus\u306f\u7533\u8acb\u5185\u5bb9\u3092\u5be9\u67fb\u3059\u308b\u305f\u3081\u3001\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u306e\u9664\u5916\u3084\u8a8d\u8a3c\u8a2d\u5b9a\u306e\u4fee\u6b63\u304c\u6e08\u3093\u3067\u3044\u306a\u3044\u3068\u3001\u627f\u8a8d\u3055\u308c\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>Spamhaus\u3067\u306e\u78ba\u8a8d\u3068\u89e3\u9664\u624b\u9806<\/h3>\n<p>\u53c2\u7167\u3055\u308c\u308b\u7bc4\u56f2\u304c\u6700\u3082\u5e83\u3044Spamhaus\u3092\u4f8b\u306b\u3001\u624b\u9806\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<p>1. Spamhaus\u306e\u300cIP and Domain Reputation Checker\u300d\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3059\u3002<br \/>\n<a href=\"https:\/\/check.spamhaus.org\/\" target=\"_blank\" rel=\"noopener\">https:\/\/check.spamhaus.org\/<\/a><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2019\/03\/spamhaus-1.png\" alt=\"Spamhaus\u306e\u300cIP and Domain Reputation Checker\u300d\u30c8\u30c3\u30d7\u30da\u30fc\u30b8\" class=\"alignnone size-full\" \/><\/p>\n<p>2. \u5165\u529b\u6b04\u306b\u30e1\u30fc\u30eb\u9001\u4fe1\u5143\u306eIP\u30a2\u30c9\u30ec\u30b9\u307e\u305f\u306f\u30c9\u30e1\u30a4\u30f3\u3092\u5165\u529b\u3057\u3001\u300cLookup\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2019\/03\/spamhaus-2.png\" alt=\"\u30a2\u30c9\u30ec\u30b9\u307e\u305f\u306f\u30c9\u30e1\u30a4\u30f3\u3092\u5165\u529b\u3057\u3066\u300cLookup\u300d\u3092\u62bc\u3059\" class=\"alignnone size-full\" \/><\/p>\n<p>3. \u7d50\u679c\u753b\u9762\u306b\u300cListed\u300d\u3068\u8868\u793a\u3055\u308c\u305f\u3089\u300cShow Details\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u30ea\u30b9\u30c8\u540d\u3068\u3001\u767b\u9332\u3055\u308c\u305f\u7406\u7531\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>4. \u8868\u793a\u3055\u308c\u305f\u5185\u5bb9\u306b\u6cbf\u3063\u3066\u3001\u89e3\u9664\u306e\u624b\u7d9a\u304d\u306b\u9032\u307f\u307e\u3059\u3002<\/p>\n<p>5. \u540d\u524d\u3001\u9023\u7d61\u5148\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3001\u554f\u984c\u306e\u8a73\u7d30\u3092\u82f1\u8a9e\u3067\u5165\u529b\u3057\u3066\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n<p>\u767b\u9332\u3057\u305f\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306bSpamhaus\u304b\u3089\u78ba\u8a8d\u30e1\u30fc\u30eb\u304c\u5c4a\u304d\u3001\u627f\u8a8d\u3059\u308c\u3070\u89e3\u9664\u7533\u8acb\u304c\u5b8c\u4e86\u3057\u307e\u3059\u3002\u53cd\u6620\u307e\u3067\u306e\u6642\u9593\u3082\u30ea\u30b9\u30c8\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u3001\u81ea\u52d5\u51e6\u7406\u3067\u6570\u5341\u5206\u306e\u3082\u306e\u304b\u3089\u3001\u62c5\u5f53\u8005\u304c\u5185\u5bb9\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u6570\u65e5\u304b\u304b\u308b\u3082\u306e\u307e\u3067\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u767b\u9332\u3055\u308c\u305f\u30ea\u30b9\u30c8\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u5bfe\u5fdc\u304c\u5909\u308f\u308b<\/h3>\n<p>Spamhaus\u306f\u3001\u6027\u8cea\u306e\u7570\u306a\u308b\u8907\u6570\u306e\u30ea\u30b9\u30c8\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002<strong>\u3069\u306e\u30ea\u30b9\u30c8\u306b\u8f09\u3063\u305f\u304b\u3067\u3001\u767b\u9332\u306e\u7406\u7531\u3082\u89e3\u9664\u306e\u624b\u9806\u3082\u5909\u308f\u308a\u307e\u3059\u3002<\/strong><\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<tbody>\n<tr>\n<th>\u30ea\u30b9\u30c8<\/th>\n<th>\u767b\u9332\u3055\u308c\u308b\u7406\u7531<\/th>\n<th>\u5bfe\u5fdc\u306e\u65b9\u5411\u6027<\/th>\n<\/tr>\n<tr>\n<td>SBL<\/td>\n<td>\u30b9\u30d1\u30e0\u306e\u9001\u4fe1\u5143\u3068\u3057\u3066\u78ba\u8a8d\u3055\u308c\u305f<\/td>\n<td>\u914d\u4fe1\u5185\u5bb9\u3068\u5b9b\u5148\u30ea\u30b9\u30c8\u3092\u662f\u6b63\u3057\u305f\u3046\u3048\u3067\u7533\u8acb\u3002\u5be9\u67fb\u306f\u624b\u52d5<\/td>\n<\/tr>\n<tr>\n<td>CSS<\/td>\n<td>\u8a55\u4fa1\u306e\u4f4e\u3044IP\u30a2\u30c9\u30ec\u30b9\u3068\u3057\u3066\u81ea\u52d5\u691c\u51fa\u3055\u308c\u305f<\/td>\n<td>\u539f\u56e0\u3092\u6b62\u3081\u305f\u3046\u3048\u3067\u516c\u5f0f\u30b5\u30a4\u30c8\u304b\u3089\u89e3\u9664\u3092\u7533\u8acb<\/td>\n<\/tr>\n<tr>\n<td>XBL<\/td>\n<td>\u30de\u30eb\u30a6\u30a7\u30a2\u611f\u67d3\u3084\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306b\u3088\u308b\u8e0f\u307f\u53f0\u5316<\/td>\n<td>\u30b5\u30fc\u30d0\u30fc\u306e\u99c6\u9664\u30fb\u8106\u5f31\u6027\u306e\u4fee\u6b63\u304c\u5148\u3002\u653e\u7f6e\u3059\u308b\u3068\u518d\u767b\u9332\u3055\u308c\u308b<\/td>\n<\/tr>\n<tr>\n<td>PBL<\/td>\n<td>\u5bb6\u5ead\u7528\u56de\u7dda\u306a\u3069\u3001\u5916\u90e8\u3078\u76f4\u63a5\u30e1\u30fc\u30eb\u3092\u9001\u308b\u7528\u9014\u3067\u306f\u306a\u3044IP\u7bc4\u56f2\u306b\u8a72\u5f53<\/td>\n<td>\u56fa\u5b9aIP\u304b\u3064\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3068\u3057\u3066\u904b\u7528\u3057\u3066\u3044\u308b\u306a\u3089\u500b\u5225\u89e3\u9664\u304c\u53ef\u80fd<\/td>\n<\/tr>\n<tr>\n<td>DBL<\/td>\n<td>\u30c9\u30e1\u30a4\u30f3\u81ea\u4f53\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u4f7f\u308f\u308c\u305f\u3001\u307e\u305f\u306f\u8a55\u4fa1\u304c\u4f4e\u3044<\/td>\n<td>\u8a72\u5f53\u30c9\u30e1\u30a4\u30f3\u306eWeb\u30b5\u30a4\u30c8\u30fb\u30e1\u30fc\u30eb\u306e\u662f\u6b63\u5f8c\u306b\u7533\u8acb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>PBL\u306b\u3064\u3044\u3066\u306f\u3001Spamhaus\u304c\u500b\u5225\u89e3\u9664\u306e\u6761\u4ef6\u3092\u660e\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u6b21\u306e4\u70b9\u3092\u3059\u3079\u3066\u6e80\u305f\u3059\u5358\u4e00\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u5bfe\u8c61\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u52d5\u7684IP\u3067\u306f\u306a\u304f\u56fa\u5b9aIP\u3067\u3042\u308b\u3053\u3068<\/li>\n<li>\u305d\u306eIP\u3067\u9001\u4fe1\u7528\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u3053\u3068<\/li>\n<li>A\u30ec\u30b3\u30fc\u30c9\u3068\u9006\u5f15\u304dDNS\uff08rDNS\uff09\u304c\u9069\u5207\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068<\/li>\n<li>\u5916\u90e8\u3078\u306e\u30dd\u30fc\u30c825\uff08\u30e1\u30fc\u30eb\u9001\u4fe1\u7528\uff09\u306e\u901a\u4fe1\u304c\u3001\u305d\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3060\u3051\u306b\u9650\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068<\/li>\n<\/ul>\n<\/div>\n<p>\u89e3\u9664\u306f\u30c1\u30a7\u30c3\u30ab\u30fc\u306e\u7d50\u679c\u753b\u9762\u304b\u3089\u7533\u8acb\u3067\u304d\u3001\u53cd\u6620\u307e\u3067\u7d0415\u5206\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u8907\u6570\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u307e\u3068\u3081\u3066\u89e3\u9664\u3059\u308b\u5834\u5408\u306f\u3001\u305d\u306eIP\u7bc4\u56f2\u3092\u4fdd\u6709\u3059\u308bISP\u5074\u304c\u7533\u8acb\u3057\u307e\u3059\u3002\u307e\u305f\u3001<strong>\u7d50\u679c\u753b\u9762\u306b\u89e3\u9664\u306e\u5bfe\u8c61\u5916\u3067\u3042\u308b\u65e8\u304c\u8868\u793a\u3055\u308c\u308b\u5834\u5408\u306f\u3001\u305d\u306eIP\u7bc4\u56f2\u306e\u4fdd\u6709\u8005\u304c\u30e1\u30fc\u30eb\u9001\u4fe1\u7528\u3067\u306f\u306a\u3044\u3068\u7533\u544a\u3057\u3066\u3044\u308b\u72b6\u614b<\/strong>\u306e\u305f\u3081\u3001ISP\u3084\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4e8b\u696d\u8005\u3078\u306e\u9023\u7d61\u304c\u5fc5\u8981\u3067\u3059\u3002\u8a73\u7d30\u306f<a href=\"https:\/\/www.spamhaus.org\/faqs\/policy-blocklist-pbl\/\" target=\"_blank\" rel=\"noopener\">Spamhaus\u306ePBL\u306b\u95a2\u3059\u308bFAQ<\/a>\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u89e3\u9664\u7533\u8acb\u306b\u66f8\u304f\u5185\u5bb9\u3068\u82f1\u6587\u306e\u4f8b<\/h3>\n<p>\u89e3\u9664\u7533\u8acb\u306e\u5165\u529b\u6b04\u306f\u82f1\u8a9e\u3067\u3059\u3002<strong>\u300c\u539f\u56e0\u304c\u4f55\u3060\u3063\u305f\u304b\u300d\u300c\u3059\u3067\u306b\u4f55\u3092\u76f4\u3057\u305f\u304b\u300d\u3092\u5177\u4f53\u7684\u306b\u66f8\u304f<\/strong>\u3053\u3068\u304c\u3001\u627f\u8a8d\u306e\u53ef\u5426\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u30d0\u30a6\u30f3\u30b9\u591a\u767a\u304c\u539f\u56e0\u3060\u3063\u305f\u5834\u5408\u306e\u8a18\u5165\u4f8b\u3067\u3059\u3002<\/p>\n<blockquote><p>Hello,<br \/>\nOur mail server (IP: 203.0.113.10, hostname: mail.example.co.jp) is currently listed.<br \/>\nWe send an opt-in newsletter to our customers in Japan. We identified the cause: a large number of invalid addresses remained in our list and generated bounces.<br \/>\nWe have already removed all invalid addresses, enabled automatic bounce processing, and added a one-click unsubscribe header. SPF, DKIM and DMARC are correctly configured for our sending domain.<br \/>\nPlease remove our IP address from the list. Thank you for your help.<\/p><\/blockquote>\n<p>IP\u30a2\u30c9\u30ec\u30b9\u3068\u30db\u30b9\u30c8\u540d\u306f\u81ea\u793e\u306e\u3082\u306e\u306b\u7f6e\u304d\u63db\u3048\u3001\u539f\u56e0\u3068\u5bfe\u51e6\u306e\u90e8\u5206\u306f\u5b9f\u969b\u306b\u884c\u3063\u305f\u5185\u5bb9\u306b\u66f8\u304d\u63db\u3048\u307e\u3059\u3002\u7533\u8acb\u6642\u306e\u6ce8\u610f\u70b9\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u30d5\u30ea\u30fc\u30e1\u30fc\u30eb\uff08Gmail\u30fbYahoo!\u30e1\u30fc\u30eb\u306a\u3069\uff09\u306e\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u306f\u7533\u8acb\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308b<\/li>\n<li>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u3068\u540c\u3058\u30c9\u30e1\u30a4\u30f3\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3067\u7533\u8acb\u3059\u308b<\/li>\n<li>\u7d50\u679c\u3092\u5f85\u305f\u305a\u306b\u4f55\u5ea6\u3082\u7533\u8acb\u3057\u306a\u3044<\/li>\n<li>\u82f1\u8a9e\u3067\u306e\u5165\u529b\u306b\u4e0d\u5b89\u304c\u3042\u308b\u5834\u5408\u306f\u30d6\u30e9\u30a6\u30b6\u306e\u7ffb\u8a33\u6a5f\u80fd\u3092\u4f75\u7528\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<h3>\u81ea\u793e\u3067\u306f\u89e3\u9664\u3067\u304d\u306a\u3044\u30b1\u30fc\u30b9<\/h3>\n<p>\u6b21\u306e\u3088\u3046\u306a\u5834\u5408\u3001\u81ea\u793e\u306e\u64cd\u4f5c\u3060\u3051\u3067\u306f\u89e3\u9664\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<tbody>\n<tr>\n<th>\u72b6\u6cc1<\/th>\n<th>\u5bfe\u5fdc\u5148<\/th>\n<\/tr>\n<tr>\n<td>\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u30fb\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u306e\u5171\u6709IP\u304c\u767b\u9332\u3055\u308c\u305f<\/td>\n<td>\u30b5\u30fc\u30d0\u30fc\u4e8b\u696d\u8005\u306e\u30b5\u30dd\u30fc\u30c8\u7a93\u53e3<\/td>\n<\/tr>\n<tr>\n<td>ISP\u304c\u5272\u308a\u5f53\u3066\u305fIP\u7bc4\u56f2\u3068\u3057\u3066PBL\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b<\/td>\n<td>\u5951\u7d04\u3057\u3066\u3044\u308bISP\u30fb\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4e8b\u696d\u8005<\/td>\n<\/tr>\n<tr>\n<td>\u8907\u6570\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u307e\u3068\u3081\u3066\u89e3\u9664\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/td>\n<td>\u305d\u306eIP\u7bc4\u56f2\u3092\u4fdd\u6709\u3059\u308bISP<\/td>\n<\/tr>\n<tr>\n<td>Gmail\u30fbOutlook\u5074\u306e\u30d5\u30a3\u30eb\u30bf\u3067\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3066\u3044\u308b<\/td>\n<td>\u5404\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u7533\u8acb\u7a93\u53e3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u306e\u5834\u5408\u3001\u540c\u3058IP\u3092\u4f7f\u3046\u4ed6\u306e\u5229\u7528\u8005\u306e\u914d\u4fe1\u304c\u539f\u56e0\u3067\u3042\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u81ea\u793e\u306e\u914d\u4fe1\u3092\u898b\u76f4\u3057\u3066\u3082\u6539\u5584\u3057\u306a\u3044\u3068\u304d\u306f\u3001\u9001\u4fe1\u7d4c\u8def\u305d\u306e\u3082\u306e\u3092\u5206\u3051\u308b\u3053\u3068\u3082\u691c\u8a0e\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3078\u306e\u518d\u767b\u9332\u3092\u9632\u3050\u904b\u7528<\/h2>\n<p>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306f\u3001\u89e3\u9664\u5f8c\u3082\u540c\u3058\u6761\u4ef6\u3092\u691c\u77e5\u3059\u308c\u3070\u518d\u3073\u767b\u9332\u3057\u307e\u3059\u3002\u9001\u4fe1\u5074\u306e\u904b\u7528\u3068\u3057\u3066\u3001\u767b\u9332\u306e\u539f\u56e0\u3092\u4f5c\u3089\u306a\u3044\u305f\u3081\u306e\u5bfe\u5fdc\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<h3>\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u3092\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u81ea\u52d5\u3067\u9664\u5916\u3059\u308b<\/h3>\n<p>\u30d0\u30a6\u30f3\u30b9\u304c\u8fd4\u3063\u3066\u304d\u305f\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u914d\u4fe1\u30ea\u30b9\u30c8\u304b\u3089\u5916\u3057\u307e\u3059\u3002<strong>\u30cf\u30fc\u30c9\u30d0\u30a6\u30f3\u30b9\uff08\u5b9b\u5148\u4e0d\u660e\u306a\u3069\u306e\u6052\u4e45\u7684\u306a\u30a8\u30e9\u30fc\uff09\u306f\u6b21\u56de\u4ee5\u964d\u306e\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u9664\u5916\u3057\u3001\u30bd\u30d5\u30c8\u30d0\u30a6\u30f3\u30b9\uff08\u5bb9\u91cf\u8d85\u904e\u306a\u3069\u306e\u4e00\u6642\u7684\u306a\u30a8\u30e9\u30fc\uff09\u306f\u9023\u7d9a\u3057\u3066\u6570\u56de\u7d9a\u3044\u305f\u6642\u70b9\u3067\u9664\u5916\u3059\u308b<\/strong>\u306e\u304c\u57fa\u672c\u3067\u3059\u3002<\/p>\n<p>\u9577\u671f\u9593\u307e\u3063\u305f\u304f\u53cd\u5fdc\u306e\u306a\u3044\u5b9b\u5148\u3082\u3001\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u5916\u3057\u307e\u3059\u3002\u4f7f\u308f\u308c\u306a\u304f\u306a\u3063\u305f\u30a2\u30c9\u30ec\u30b9\u304c\u30b9\u30d1\u30e0\u30c8\u30e9\u30c3\u30d7\u306b\u8ee2\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002\u624b\u4f5c\u696d\u3067\u306e\u7ba1\u7406\u306f\u629c\u3051\u6f0f\u308c\u304c\u8d77\u304d\u3084\u3059\u3044\u305f\u3081\u3001\u81ea\u52d5\u3067\u51e6\u7406\u3055\u308c\u308b\u4ed5\u7d44\u307f\u3092\u7528\u610f\u3057\u3066\u304a\u304f\u3068\u5b89\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<h3>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3068\u9006\u5f15\u304dDNS\u3092\u8a2d\u5b9a\u3059\u308b<\/h3>\n<p>SPF\u30fbDKIM\u30fbDMARC\u3092\u8a2d\u5b9a\u3057\u3001\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306e\u9006\u5f15\u304dDNS\uff08PTR\u30ec\u30b3\u30fc\u30c9\uff09\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u8a8d\u8a3c\u304c\u901a\u3089\u306a\u3044\u3068\u53d7\u4fe1\u5074\u306f\u5dee\u51fa\u4eba\u3092\u78ba\u304b\u3081\u3089\u308c\u306a\u3044\u305f\u3081\u3001\u306a\u308a\u3059\u307e\u3057\u3068\u540c\u3058\u6271\u3044\u3092\u53d7\u3051\u307e\u3059\u3002<\/p>\n<p>\u5916\u90e8\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3044\u59cb\u3081\u305f\u5834\u5408\u306f\u3001SPF\u30ec\u30b3\u30fc\u30c9\u306e\u66f4\u65b0\u304c\u6f0f\u308c\u3084\u3059\u3044\u7b87\u6240\u3067\u3059\u3002\u9001\u4fe1\u7d4c\u8def\u3092\u5909\u3048\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067DNS\u8a2d\u5b9a\u3092\u898b\u76f4\u3057\u307e\u3059\u3002<\/p>\n<h3>\u914d\u4fe1\u91cf\u3092\u6bb5\u968e\u7684\u306b\u5897\u3084\u3059\uff08IP\u30a6\u30a9\u30fc\u30e0\u30a2\u30c3\u30d7\uff09<\/h3>\n<p>\u65b0\u3057\u3044IP\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u914d\u4fe1\u3092\u59cb\u3081\u308b\u3068\u304d\u306f\u3001\u521d\u65e5\u304b\u3089\u5927\u91cf\u306b\u9001\u3089\u305a\u3001\u65e5\u3092\u8ffd\u3063\u3066\u901a\u6570\u3092\u5897\u3084\u3057\u307e\u3059\u3002\u914d\u4fe1\u5b9f\u7e3e\u306e\u306a\u3044IP\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u306e\u6025\u306a\u5927\u91cf\u9001\u4fe1\u306f\u3001\u30b9\u30d1\u30e0\u696d\u8005\u306e\u3075\u308b\u307e\u3044\u3068\u533a\u5225\u304c\u3064\u304d\u306b\u304f\u304f\u3001\u767b\u9332\u306e\u5f15\u304d\u91d1\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u767b\u9332\u89e3\u9664\u306e\u5c0e\u7dda\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u3059\u308b<\/h3>\n<p>\u914d\u4fe1\u505c\u6b62\u306e\u65b9\u6cd5\u304c\u5206\u304b\u308a\u306b\u304f\u3044\u3068\u3001\u53d7\u4fe1\u8005\u306f\u89e3\u9664\u306e\u4ee3\u308f\u308a\u306b\u300c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u300d\u3092\u62bc\u3057\u307e\u3059\u3002\u672c\u6587\u306b\u767b\u9332\u89e3\u9664\u30ea\u30f3\u30af\u3092\u660e\u793a\u3057\u3001\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u767b\u9332\u89e3\u9664\u306b\u5bfe\u5fdc\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u5831\u544a\u7387\u306e\u4e0a\u6607\u3092\u6291\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u78ba\u8a8d\u9805\u76ee\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u306b\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u5f62\u5f0f\u3067\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/spam\/anti-spam\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2025\/09\/anti-spam.jpg\" alt=\"\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u5165\u3063\u3066\u3057\u307e\u3046\u539f\u56e0\u3068\u5bfe\u7b56\u307e\u3068\u3081\uff5c\u5230\u9054\u7387\u3092\u6539\u5584\u3059\u308b\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\" width=\"90\" height=\"47\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u5165\u3063\u3066\u3057\u307e\u3046\u539f\u56e0\u3068\u5bfe\u7b56\u307e\u3068\u3081\uff5c\u5230\u9054\u7387\u3092\u6539\u5584\u3059\u308b\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/div>\n    <div class=\"blogcard_excerpt\">\u300c\u305b\u3063\u304b\u304f\u9001\u3063\u305f\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u5165\u3063\u3066\u3057\u307e\u3046\u2026\u300d\u305d\u3093\u306a\u7d4c\u9a13\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u3084\u30e1\u30eb\u30de\u30ac\u306a\u3069\u3001\u78ba\u5b9f\u306b\u5c4a\u3051\u305f\u3044\u30e1\u30fc\u30eb\u304c\u76f8\u624b\u306e\u53d7\u4fe1\u30c8\u30ec\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h2>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u8f09\u3063\u3066\u3044\u306a\u3044\u306e\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0<\/h2>\n<p>\u5404\u7a2e\u30c4\u30fc\u30eb\u3067\u8abf\u3079\u3066\u3082\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u306f\u8f09\u3063\u3066\u3044\u306a\u3044\u306e\u306b\u3001\u7279\u5b9a\u306e\u5b9b\u5148\uff08\u3068\u304f\u306bGmail\uff09\u306b\u3060\u3051\u5c4a\u304b\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30b1\u30fc\u30b9\u3067\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u5358\u4f4d\u306e\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3067\u306f\u306a\u304f\u3001<strong>\u30c9\u30e1\u30a4\u30f3\u81ea\u4f53\u306e\u8a55\u4fa1\u3068\u3001\u9001\u4fe1\u8005\u8981\u4ef6\u3078\u306e\u6e96\u62e0\u72b6\u6cc1<\/strong>\u304c\u5f71\u97ff\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>Gmail\u3084Outlook\u306e\u9001\u4fe1\u8005\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044<\/h3>\n<p>Google\u306f2024\u5e742\u6708\u4ee5\u964d\u3001Gmail\u30a2\u30ab\u30a6\u30f3\u30c8\u5b9b\u306b1\u65e55,000\u4ef6\u3092\u8d85\u3048\u308b\u30e1\u30fc\u30eb\u3092\u9001\u308b\u9001\u4fe1\u8005\u306b\u5bfe\u3057\u3001SPF\u3068DKIM\u306e\u4e21\u65b9\u306e\u8a2d\u5b9a\u3001DMARC\u3078\u306e\u5bfe\u5fdc\u3001\u30ef\u30f3\u30af\u30ea\u30c3\u30af\u767b\u9332\u89e3\u9664\u306e\u5b9f\u88c5\u306a\u3069\u3092\u8981\u4ef6\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u8981\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u30e1\u30fc\u30eb\u306f\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3078\u306e\u632f\u308a\u5206\u3051\u3084\u62d2\u5426\u306e\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u9001\u4fe1\u6570\u304c5,000\u4ef6\u306b\u6e80\u305f\u306a\u3044\u5834\u5408\u306b\u3082\u3001\u3059\u3079\u3066\u306e\u9001\u4fe1\u8005\u306b\u5171\u901a\u306e\u8981\u4ef6\u304c\u3042\u308a\u307e\u3059\u3002<strong>SPF\u307e\u305f\u306fDKIM\u306e\u3044\u305a\u308c\u304b\u306e\u8a2d\u5b9a\u3001\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306e\u6709\u52b9\u306a\u9006\u5f15\u304dDNS\u3001TLS\u306b\u3088\u308b\u6697\u53f7\u5316\u63a5\u7d9a\u3078\u306e\u5bfe\u5fdc\u306a\u3069\u306f\u3001\u3059\u3079\u3066\u306e\u9001\u4fe1\u8005\u306b\u6c42\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/strong><\/p>\n<p>Microsoft\u30822025\u5e745\u67085\u65e5\u304b\u3089\u3001outlook.com\u30fbhotmail.com\u30fblive.com\u5b9b\u306b1\u65e55,000\u901a\u3092\u8d85\u3048\u3066\u9001\u308b\u9001\u4fe1\u8005\u306b\u5bfe\u3057\u3001SPF\u30fbDKIM\u30fbDMARC\u306e\u8a2d\u5b9a\u3092\u5fc5\u9808\u3068\u3057\u307e\u3057\u305f\u3002\u5f53\u521d\u306f\u8981\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u30e1\u30fc\u30eb\u3092\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3078\u632f\u308a\u5206\u3051\u308b\u65b9\u91dd\u3067\u3057\u305f\u304c\u3001\u65bd\u884c\u76f4\u524d\u306b\u53d7\u4fe1\u81ea\u4f53\u3092\u62d2\u5426\u3059\u308b\u65b9\u91dd\u3078\u5909\u66f4\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u8a72\u5f53\u3059\u308b\u5834\u5408\u3001\u9001\u4fe1\u5074\u306b\u306f <span style=\"background: #f2f2f2; padding: .1em .4em; border-radius: 3px; font-family: monospace; font-size: .95em;\">550; 5.7.515 Access denied, sending domain [\u30c9\u30e1\u30a4\u30f3\u540d] does not meet the required authentication level<\/span> \u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u8fd4\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u8a2d\u5b9a\u3092\u5909\u66f4\u3057\u3066\u3044\u306a\u3044\u306e\u306b\u3001\u3042\u308b\u6642\u671f\u304b\u3089Outlook\u5b9b\u3060\u3051\u5c4a\u304b\u306a\u304f\u306a\u3063\u305f\u5834\u5408\u306f\u3001\u3053\u306e\u8981\u4ef6\u304c\u95a2\u4fc2\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027<\/strong>\u304c\u3042\u308a\u307e\u3059\u3002\u306a\u304a\u3001\u3053\u306e\u8981\u4ef6\u306e\u5bfe\u8c61\u306foutlook.com\u30fbhotmail.com\u30fblive.com\u306e\u500b\u4eba\u5411\u3051\u30a2\u30ab\u30a6\u30f3\u30c8\u3067\u3001\u6cd5\u4eba\u5411\u3051\u306eMicrosoft 365\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u5b9b\u306f\u542b\u307e\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>Google\u306e\u8981\u4ef6\u306f<a href=\"https:\/\/support.google.com\/a\/answer\/81126?hl=ja\" target=\"_blank\" rel=\"noopener\">\u30e1\u30fc\u30eb\u9001\u4fe1\u8005\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\uff08Google Workspace \u7ba1\u7406\u8005 \u30d8\u30eb\u30d7\uff09<\/a>\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u65e5\u672c\u8a9e\u3067\u306e\u8981\u4ef6\u306e\u8aad\u307f\u89e3\u304d\u65b9\u3068\u5bfe\u5fdc\u624b\u9806\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\/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>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u7387\u304c0.1%\u3092\u8d85\u3048\u3066\u3044\u308b<\/h3>\n<p>Gmail\u306e\u9001\u4fe1\u8005\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3067\u306f\u3001Postmaster Tools\u3067\u5831\u544a\u3055\u308c\u308b\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u3092<strong>0.10%\u672a\u6e80\u306b\u7dad\u6301\u3057\u30010.30%\u4ee5\u4e0a\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3053\u3068<\/strong>\u304c\u6c42\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u6570\u5024\u3092\u8d85\u3048\u308b\u3068\u3001\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u8f09\u3063\u3066\u3044\u306a\u304f\u3066\u3082\u5230\u9054\u7387\u304c\u4e0b\u304c\u308a\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u51e6\u306f\u3001\u30ea\u30b9\u30c8\u306e\u8cea\u3068\u914d\u4fe1\u5185\u5bb9\u306e\u898b\u76f4\u3057\u3067\u3059\u3002\u53cd\u5fdc\u306e\u306a\u3044\u5b9b\u5148\u3092\u914d\u4fe1\u5bfe\u8c61\u304b\u3089\u5916\u3059\u3001\u914d\u4fe1\u983b\u5ea6\u3092\u843d\u3068\u3059\u3001\u4ef6\u540d\u3068\u672c\u6587\u304c\u53d7\u4fe1\u8005\u306e\u671f\u5f85\u304b\u3089\u96e2\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u70b9\u691c\u3059\u308b\u3001\u3068\u3044\u3063\u305f\u5bfe\u5fdc\u304c\u8a72\u5f53\u3057\u307e\u3059\u3002<\/p>\n<h3>Google Postmaster Tools\u3067\u78ba\u8a8d\u3067\u304d\u308b\u3053\u3068<\/h3>\n<p>Google\u304c\u7121\u6599\u3067\u63d0\u4f9b\u3057\u3066\u3044\u308b\u300cPostmaster Tools\u300d\u3092\u4f7f\u3046\u3068\u3001Gmail\u5074\u304c\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3092\u3069\u3046\u6271\u3063\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u5229\u7528\u306b\u306f\u30c9\u30e1\u30a4\u30f3\u306e\u767b\u9332\u3068\u3001DNS\u3078\u306eTXT\u30ec\u30b3\u30fc\u30c9\u8ffd\u52a0\u306b\u3088\u308b\u6240\u6709\u6a29\u306e\u8a8d\u8a3c\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u3053\u3053\u3067\u6ce8\u610f\u3057\u305f\u3044\u306e\u304c\u3001\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\uff08v2\uff09\u3078\u306e\u79fb\u884c\u3067\u3059\u3002v2\u305d\u306e\u3082\u306e\u306f2024\u5e74\u304b\u3089\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u30012025\u5e749\u670830\u65e5\u306b\u65e7\u30d0\u30fc\u30b8\u30e7\u30f3\uff08v1\uff09\u304c\u5ec3\u6b62\u3055\u308c\u3001\u30a2\u30af\u30bb\u30b9\u304c\u81ea\u52d5\u7684\u306bv2\u3078\u5207\u308a\u66ff\u308f\u308a\u307e\u3057\u305f\u3002<strong>\u5f93\u6765\u306e\u300c\u30c9\u30e1\u30a4\u30f3\u8a55\u4fa1\u300d\u300cIP\u8a55\u4fa1\u300d\u306e\u30b0\u30e9\u30d5\u306f\u3001v2\u3067\u306f\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/strong>\u73fe\u5728\u78ba\u8a8d\u3067\u304d\u308b\u306e\u306f\u6b21\u306e\u9805\u76ee\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\uff08\u53d7\u4fe1\u8005\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u3057\u305f\u5272\u5408\uff09<\/li>\n<li>\u8a8d\u8a3c\uff08SPF\u30fbDKIM\u30fbDMARC\uff09\u306e\u72b6\u6cc1<\/li>\n<li>\u6697\u53f7\u5316\uff08TLS\uff09\u306e\u5229\u7528\u72b6\u6cc1<\/li>\n<li>\u914d\u4fe1\u30a8\u30e9\u30fc\u306e\u5185\u8a33<\/li>\n<li>\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u30eb\u30fc\u30d7\u306e\u30c7\u30fc\u30bf<\/li>\n<li>\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u30b9\u30c6\u30fc\u30bf\u30b9\uff08\u9001\u4fe1\u8005\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u306e\u5224\u5b9a\uff09<\/li>\n<\/ul>\n<\/div>\n<p>\u8a55\u4fa1\u30b9\u30b3\u30a2\u3092\u8ffd\u3046\u904b\u7528\u304b\u3089\u3001\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u904b\u7528\u3078\u3068\u3001\u898b\u308b\u3079\u304d\u6307\u6a19\u304c\u5909\u308f\u3063\u3066\u3044\u307e\u3059\u3002\u306a\u304a\u3001Gmail\u5b9b\u306e\u9001\u4fe1\u6570\u304c\u5c11\u306a\u3044\u65e5\u306f\u3001\u53d7\u4fe1\u8005\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u4fdd\u8b77\u306e\u305f\u3081\u30c7\u30fc\u30bf\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5404\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306e\u898b\u65b9\u3068\u767b\u9332\u624b\u9806\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u753b\u50cf\u4ed8\u304d\u3067\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n  <div class=\"blogcard\">\n  <a href=\"\/blog\/mail-delivery\/howto-postmastertools\">\n   <div class=\"blogcard_thumbnail\"><img decoding=\"async\" src=\"https:\/\/blastmail.jp\/blog\/wp-content\/uploads\/2024\/02\/howto-postmastertools.png\" alt=\"Google Postmaster Tools\u3068\u306f\uff1f\u30102026\u5e74\u6700\u65b0\u3011Gmail\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u306e\u78ba\u8a8d\u30fb\u767b\u9332\u65b9\u6cd5\u3092\u5168\u89e3\u8aac\" width=\"90\" height=\"51\" \/><\/div>\n   <div class=\"blogcard_content\">\n    <div class=\"blogcard_title\">Google Postmaster Tools\u3068\u306f\uff1f\u30102026\u5e74\u6700\u65b0\u3011Gmail\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u306e\u78ba\u8a8d\u30fb\u767b\u9332\u65b9\u6cd5\u3092\u5168\u89e3\u8aac<\/div>\n    <div class=\"blogcard_excerpt\">Google Postmaster Tools\uff08\u30dd\u30b9\u30c8\u30de\u30b9\u30bf\u30fc\u30c4\u30fc\u30eb\uff09\u306f\u3001Google\u304c\u63d0\u4f9b\u3059\u308b\u516c\u5f0f\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u3067\u3059\u3002 202\u2026<\/div>\n   <\/div>\n   <div class=\"clear\"><\/div>\n  <\/a>\n  <\/div>\n<h3>Microsoft\u5074\u306e\u8a55\u4fa1\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>Microsoft\u306f\u3001\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u30c4\u30fc\u30eb\u3068\u3001\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f\u5834\u5408\u306e\u89e3\u9664\u7533\u8acb\u7a93\u53e3\u3092\u305d\u308c\u305e\u308c\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u78ba\u8a8d\u3059\u308b\u306e\u306f\u9001\u4fe1\u5074\u3001\u3064\u307e\u308a\u81ea\u793e\u304c\u4f7f\u3063\u3066\u3044\u308b\u9001\u4fe1\u7528IP\u30a2\u30c9\u30ec\u30b9\u306e\u72b6\u614b\u3067\u3059\u3002<\/p>\n<div class=\"su-table su-table-alternate\">\n<table>\n<tbody>\n<tr>\n<th>\u7528\u9014<\/th>\n<th>\u30c4\u30fc\u30eb<\/th>\n<\/tr>\n<tr>\n<td>\u9001\u4fe1IP\u306e\u8a55\u4fa1\u30fb\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b<\/td>\n<td><a href=\"https:\/\/substrate.office.com\/ip-domain-management-snds\/SNDS\" target=\"_blank\" rel=\"noopener\">Smart Network Data Services\uff08SNDS\uff09<\/a><\/td>\n<\/tr>\n<tr>\n<td>\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305fIP\u306e\u89e3\u9664\u3092\u7533\u8acb\u3059\u308b<\/td>\n<td><a href=\"https:\/\/sender.office.com\/\" target=\"_blank\" rel=\"noopener\">Office 365 Anti-Spam IP Delist Portal<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u306a\u304a\u3001SNDS\u306e\u30dd\u30fc\u30bf\u30eb\u306f2026\u5e746\u67088\u65e5\u306bURL\u304c\u79fb\u884c\u3057\u307e\u3057\u305f\u3002\u65e7URL\u306f\u73fe\u5728\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3055\u308c\u307e\u3059\u304c\u3001<strong>Microsoft\u306f\u65e7\u5f62\u5f0f\u306e\u81ea\u52d5\u30a2\u30af\u30bb\u30b9\u7528URL\u30922026\u5e746\u670822\u65e5\u4ed8\u3067\u5ec3\u6b62\u3057\u3066\u3044\u307e\u3059\u3002<\/strong>\u30d6\u30c3\u30af\u30de\u30fc\u30af\u306e\u307b\u304b\u3001\u30ec\u30dd\u30fc\u30c8\u3092\u81ea\u52d5\u53d6\u5f97\u3057\u3066\u3044\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u65e7URL\u304c\u6b8b\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u5dee\u3057\u66ff\u3048\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u53d7\u4fe1\u8005\u5074\u306e\u8a2d\u5b9a\u304c\u539f\u56e0\u3067Outlook\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002\u9001\u4fe1\u8005\u5074\u30fb\u53d7\u4fe1\u8005\u5074\u305d\u308c\u305e\u308c\u306e\u78ba\u8a8d\u624b\u9806\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u6574\u7406\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>\u518d\u767a\u9632\u6b62\u306e\u624b\u9593\u3092\u6e1b\u3089\u3059\u306a\u3089\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046<\/h2>\n<p>\u3053\u3053\u307e\u3067\u6319\u3052\u305f\u518d\u767a\u9632\u6b62\u306e\u5bfe\u5fdc\u306f\u3001\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u914d\u4fe1\u3067\u3082\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u914d\u4fe1\u3054\u3068\u306b\u30ed\u30b0\u3092\u898b\u3066\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u3092\u5916\u3059\u4f5c\u696d\u306f\u6bce\u56de\u5fc5\u8981\u3067\u3001\u914d\u4fe1\u91cf\u304c\u5897\u3048\u308b\u307b\u3069\u624b\u9593\u3082\u5897\u3048\u307e\u3059\u3002\u5927\u91cf\u914d\u4fe1\u3067\u306f\u3001\u9001\u4fe1\u5143\u3092\u5206\u6563\u3055\u305b\u308b\u305f\u3081\u306b\u30b5\u30fc\u30d0\u30fc\u3092\u8ffd\u52a0\u3059\u308b\u3001\u914d\u4fe1\u901f\u5ea6\u3092\u843d\u3068\u3059\u3001\u3068\u3044\u3063\u305f\u8abf\u6574\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u524d\u8005\u306f\u30b5\u30fc\u30d0\u30fc\u306e\u8cbb\u7528\u3001\u5f8c\u8005\u306f\u914d\u4fe1\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u306e\u6642\u9593\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u3053\u308c\u3089\u306e\u51e6\u7406\u3092\u914d\u4fe1\u57fa\u76e4\u5074\u3067\u62c5\u3046\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u306e\u81ea\u52d5\u9664\u5916\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3078\u306e\u6a19\u6e96\u5bfe\u5fdc\u3001IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u76e3\u8996\u3068\u3044\u3063\u305f\u9805\u76ee\u304c\u3001\u8a2d\u5b9a\u306e\u7bc4\u56f2\u3067\u5b8c\u7d50\u3057\u307e\u3059\u3002<\/p>\n<h2>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300c\u30d6\u30e9\u30b9\u30c8\u30e1\u30fc\u30eb\u300d<\/h2>\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\uff08\u203b\uff09\u3092\u7372\u5f97\u3057\u3066\u3044\u308b\u56fd\u5185\u6700\u5927\u7d1a\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u300227,000\u793e\u4ee5\u4e0a\u306e\u5c0e\u5165\u5b9f\u7e3e\u304c\u3042\u308a\u3001\u30e1\u30eb\u30de\u30ac\u3084\u304a\u77e5\u3089\u305b\u30e1\u30fc\u30eb\u306e\u4e00\u6589\u914d\u4fe1\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u5bfe\u7b56\uff08SPF\/DKIM\uff09\uff1aDKIM\u306fStandard\u30d7\u30e9\u30f3\u4ee5\u4e0a\u3067\u5229\u7528\u53ef\u80fd<\/li>\n<li>Gmail\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u5bfe\u5fdc\uff1a\u4e3b\u8981\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u9001\u4fe1\u8005\u8981\u4ef6\u306b\u5bfe\u5fdc\u3057\u305f\u914d\u4fe1\u57fa\u76e4<\/li>\n<li>\u52b9\u679c\u6e2c\u5b9a\uff1a\u958b\u5c01\u7387\u30fb\u30af\u30ea\u30c3\u30af\u7387\u30fb\u30a8\u30e9\u30fc\u30ab\u30a6\u30f3\u30c8\u3092\u78ba\u8a8d\u3067\u304d\u308b<\/li>\n<li>\u767b\u9332\u89e3\u9664\u30d5\u30a9\u30fc\u30e0\u4f5c\u6210\uff1a\u89e3\u9664\u306e\u5c0e\u7dda\u3092\u6574\u5099\u3067\u304d\u308b<\/li>\n<li>\u30ea\u30b9\u30c8\u914d\u4fe1\u30fb\u30d5\u30a3\u30eb\u30bf\u914d\u4fe1\uff1a\u53cd\u5fdc\u306e\u306a\u3044\u5b9b\u5148\u3092\u9664\u3044\u305f\u914d\u4fe1\u8a2d\u8a08\u304c\u53ef\u80fd<\/li>\n<\/ul>\n<\/div>\n<p>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3078\u306e\u5bfe\u5fdc\u3084\u3001\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u306e\u628a\u63e1\u3068\u3044\u3063\u305f\u5230\u9054\u7387\u307e\u308f\u308a\u306e\u6a5f\u80fd\u3092\u3001\u7ba1\u7406\u753b\u9762\u304b\u3089\u6271\u3048\u307e\u3059\u3002\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u3067\u5b9f\u969b\u306e\u64cd\u4f5c\u611f\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\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=\"su-button-center\"><a href=\"https:\/\/blastmail.jp\/order\/input\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_blank\" rel=\"noopener noreferrer\"><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>\u203b\u30df\u30c3\u30afIT\u30ea\u30dd\u30fc\u30c82025\u5e748\u6708\u53f7\u300c\u30af\u30e9\u30a6\u30c9\u578be\u30e1\u30fc\u30eb\u4e00\u6589\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u5e02\u5834\u52d5\u5411\u3068\u4e2d\u671f\u4e88\u6e2c\uff08\u58f2\u4e0a\u9ad8\/\u30a2\u30af\u30c6\u30a3\u30d6\u6cd5\u4eba\u9867\u5ba2\u6570\uff09\u300d\u3088\u308a<\/p>\n<h2>\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cblastengine\u300d<\/h2>\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\u81ea\u793e\u30b7\u30b9\u30c6\u30e0\u3068SMTP\u30ea\u30ec\u30fc\u3084API\u3067\u9023\u643a\u3059\u308b\u3053\u3068\u3067\u3001\u4e00\u6589\u914d\u4fe1\u3084\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30e1\u30fc\u30eb\u3092\u9001\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\u3092blastengine\u5074\u304c\u62c5\u3046\u305f\u3081\u3001IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u7dad\u6301\u3092\u30b5\u30fc\u30d3\u30b9\u5074\u306b\u4efb\u305b\u3089\u308c\u307e\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>API\u9023\u643a\u30fbSMTP\u30ea\u30ec\u30fc\uff1a\u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u7d44\u307f\u8fbc\u307f\u304c\u5bb9\u6613\u3067\u3001\u9001\u4fe1\u7d4c\u8def\u3060\u3051\u3092\u5207\u308a\u66ff\u3048\u3089\u308c\u308b<\/li>\n<li>IP\u30ec\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u7ba1\u7406\uff1a\u904b\u7528\u30fb\u76e3\u8996\u3092\u30b5\u30fc\u30d3\u30b9\u5074\u304c\u62c5\u3046<\/li>\n<li>SPF\/DKIM\/DMARC\u5bfe\u5fdc\uff1a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u6a19\u6e96\u5bfe\u5fdc<\/li>\n<li>\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u81ea\u52d5\u5bfe\u5fdc\uff1a\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u306e\u7ba1\u7406\u3092\u81ea\u52d5\u5316\u3067\u304d\u308b<\/li>\n<li>\u30ad\u30e3\u30ea\u30a2\u30fbISP\u3078\u306e\u500b\u5225\u9001\u4fe1\u30ed\u30b8\u30c3\u30af\uff1a\u56fd\u518599%\u4ee5\u4e0a\u306e\u5230\u9054\u7387\u3092\u5b9f\u73fe<\/li>\n<\/ul>\n<\/div>\n<p>\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u306e\u914d\u4fe1\u3067\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u767b\u9332\u3092\u7e70\u308a\u8fd4\u3057\u3066\u3044\u308b\u5834\u5408\u3084\u3001\u56fd\u5185\u30ad\u30e3\u30ea\u30a2\u5b9b\u306e\u4e0d\u9054\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u3001\u9001\u4fe1\u57fa\u76e4\u3054\u3068\u5207\u308a\u66ff\u3048\u308b\u9078\u629e\u80a2\u306b\u306a\u308a\u307e\u3059\u3002\u521d\u671f\u8cbb\u7528\u306f\u7121\u6599\u3067\u3001\u6708\u984d3,000\u5186\u304b\u3089\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30d6\u30e9\u30b9\u30c8\u30a8\u30f3\u30b8\u30f3\u516c\u5f0f\u30b5\u30a4\u30c8\uff1a<a href=\"https:\/\/blastengine.jp\/\" target=\"_blank\" rel=\"noopener\">https:\/\/blastengine.jp\/<\/a><\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/app.engn.jp\/be\/order\/request-form\" class=\"su-button su-button-style-flat event_bnr\" style=\"color:#FFFFFF;background-color:#c12620;border-color:#9b1f1a;border-radius:5px\" target=\"_blank\" rel=\"noopener noreferrer\"><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<h2>\u307e\u3068\u3081<\/h2>\n<p>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u308b\u3068\u3001\u8ca9\u4fc3\u30e1\u30fc\u30eb\u3082\u696d\u52d9\u9023\u7d61\u3082\u76f8\u624b\u306b\u5c4a\u304b\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u5bfe\u5fdc\u306e\u6d41\u308c\u3092\u6574\u7406\u3059\u308b\u3068\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<div class=\"list04\">\n<ul>\n<li>\u75c7\u72b6\u304b\u3089\u539f\u56e0\u306e\u3042\u305f\u308a\u3092\u3064\u3051\u308b\uff08\u5168\u5b9b\u5148\u304b\u3001\u7279\u5b9a\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u307f\u304b\u3001\u5358\u767a\u304b\uff09<\/li>\n<li>MxToolbox\u30fbDNSChecker\u30fbSpamhaus\u3067\u767b\u9332\u306e\u6709\u7121\u3068\u30ea\u30b9\u30c8\u540d\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n<li>\u767b\u9332\u306e\u539f\u56e0\uff08\u30d0\u30a6\u30f3\u30b9\u30fb\u8ff7\u60d1\u30e1\u30fc\u30eb\u5831\u544a\u30fb\u8a8d\u8a3c\u8a2d\u5b9a\uff09\u3092\u7279\u5b9a\u3059\u308b<\/li>\n<li>\u539f\u56e0\u3092\u662f\u6b63\u3057\u305f\u3046\u3048\u3067\u89e3\u9664\u3092\u7533\u8acb\u3059\u308b<\/li>\n<li>\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u306e\u9664\u5916\u3068\u8a8d\u8a3c\u8a2d\u5b9a\u3092\u904b\u7528\u306b\u7d44\u307f\u8fbc\u307f\u3001\u518d\u767b\u9332\u3092\u9632\u3050<\/li>\n<li>\u8f09\u3063\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u9001\u4fe1\u8005\u8981\u4ef6\u3068\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u3092\u78ba\u8a8d\u3059\u308b<\/li>\n<\/ul>\n<\/div>\n<p>\u89e3\u9664\u306f\u4e00\u5ea6\u304d\u308a\u306e\u4f5c\u696d\u3067\u306f\u306a\u304f\u3001\u518d\u767b\u9332\u3092\u9632\u3050\u904b\u7528\u3068\u30bb\u30c3\u30c8\u306b\u306a\u308a\u307e\u3059\u3002<strong>\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u306e\u81ea\u52d5\u9664\u5916\u3068\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u304c\u3001\u305d\u306e\u524d\u63d0\u3067\u3059\u3002<\/strong><\/p>\n<p>\u81ea\u793e\u30b5\u30fc\u30d0\u30fc\u3067\u306e\u904b\u7528\u306b\u9650\u754c\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u914d\u4fe1\u57fa\u76e4\u3054\u3068\u898b\u76f4\u3059\u9078\u629e\u80a2\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"blog-faq\"><h2 class=\"blog-faq__title\">FAQ<\/h2><dl class=\"blog-faq__list\">\n<dt class=\"blog-faq__question\">Q\uff1a\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u304a\u3051\u308b\u300c\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u300d\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u8ff7\u60d1\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u3068\u3057\u3066\u767b\u9332\u3055\u308c\u305fIP\u30a2\u30c9\u30ec\u30b9\u3084\u30c9\u30e1\u30a4\u30f3\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u3001<strong>DNSBL\u3084RBL\u3068\u3082\u547c\u3070\u308c\u307e\u3059<\/strong>\u3002\u4e16\u754c\u4e2d\u306e\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u304c\u53d7\u4fe1\u6642\u306b\u3053\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304a\u308a\u3001\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u3068\u30e1\u30fc\u30eb\u304c\u62d2\u5426\u3055\u308c\u305f\u308a\u8ff7\u60d1\u30e1\u30fc\u30eb\u6271\u3044\u306b\u306a\u3063\u305f\u308a\u3057\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u81ea\u793e\u304c\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u306f\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aMxToolbox\u306b\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u30fb\u30c9\u30e1\u30a4\u30f3\u3092\u5165\u529b\u3059\u308b\u3068\u3001100\u7a2e\u985e\u4ee5\u4e0a\u306e\u30ea\u30b9\u30c8\u3092\u4e00\u62ec\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u3042\u308f\u305b\u3066<strong>Spamhaus\u306e\u516c\u5f0f\u30c1\u30a7\u30c3\u30ab\u30fc\u3067\u78ba\u8a8d\u3059\u308b<\/strong>\u3068\u3001\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u30ea\u30b9\u30c8\u540d\u3068\u767b\u9332\u7406\u7531\u307e\u3067\u5206\u304b\u308a\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u304b\u3089\u89e3\u9664\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u30ea\u30b9\u30c8\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u304b\u3089\u3001\u82f1\u8a9e\u3067\u89e3\u9664\u7533\u8acb\u3092\u884c\u3044\u307e\u3059\u3002<strong>\u7533\u8acb\u524d\u306b\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u306e\u9664\u5916\u3084\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u306a\u3069\u3001\u767b\u9332\u306e\u539f\u56e0\u3092\u89e3\u6d88\u3057\u3066\u304a\u304b\u306a\u3044\u3068\u3001\u627f\u8a8d\u3055\u308c\u306a\u3044\u304b\u3001\u627f\u8a8d\u3055\u308c\u3066\u3082\u3059\u3050\u306b\u518d\u767b\u9332\u3055\u308c\u307e\u3059\u3002<\/strong><\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u30ec\u30f3\u30bf\u30eb\u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u81ea\u5206\u3067\u89e3\u9664\u3067\u304d\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u5171\u7528\u30b5\u30fc\u30d0\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u767b\u9332\u3055\u308c\u305f\u5834\u5408\u3001\u5229\u7528\u8005\u5074\u3067\u306f\u89e3\u9664\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u307b\u3068\u3093\u3069\u3067\u3059\u3002<strong>\u30b5\u30fc\u30d0\u30fc\u4e8b\u696d\u8005\u306e\u30b5\u30dd\u30fc\u30c8\u7a93\u53e3\u3078\u9023\u7d61\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/strong>\u540c\u3058IP\u3092\u4f7f\u3046\u4ed6\u306e\u5229\u7528\u8005\u304c\u539f\u56e0\u306e\u3053\u3068\u3082\u3042\u308b\u305f\u3081\u3001\u6539\u5584\u3057\u306a\u3044\u5834\u5408\u306f\u9001\u4fe1\u7d4c\u8def\u3092\u5206\u3051\u308b\u3053\u3068\u3082\u691c\u8a0e\u306e\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u8f09\u3063\u3066\u3044\u306a\u3044\u306e\u306bGmail\u306b\u5c4a\u304b\u306a\u3044\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1aGmail\u306f\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u3068\u306f\u5225\u306b\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u8a55\u4fa1\u3068\u9001\u4fe1\u8005\u8981\u4ef6\u3078\u306e\u6e96\u62e0\u72b6\u6cc1\u3067\u53d7\u4fe1\u53ef\u5426\u3092\u5224\u65ad\u3057\u3066\u3044\u307e\u3059\u3002<strong>SPF\u30fbDKIM\u30fbDMARC\u306e\u8a2d\u5b9a\u4e0d\u5099\u3084\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u7387\u304c0.30%\u4ee5\u4e0a\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u4e3b\u306a\u539f\u56e0\u3067\u3059\u3002<\/strong>Google Postmaster Tools\u3067\u72b6\u6cc1\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/dd>\n<dt class=\"blog-faq__question\">Q\uff1a\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u767b\u9332\u3092\u9632\u3050\u5bfe\u7b56\u306f\u3042\u308a\u307e\u3059\u304b\uff1f<\/dt><dd class=\"blog-faq__answer\">A\uff1a\u914d\u4fe1\u30ea\u30b9\u30c8\u3092\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3061\u3001\u30a8\u30e9\u30fc\u306b\u306a\u3063\u305f\u30a2\u30c9\u30ec\u30b9\u306b\u306f\u9001\u3089\u306a\u3044\u30ea\u30b9\u30c8\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\u306e\u5fb9\u5e95\u304c\u57fa\u672c\u3067\u3059\u3002<strong>\u624b\u52d5\u3067\u306e\u7ba1\u7406\u304c\u96e3\u3057\u3044\u5834\u5408\u306f\u3001\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u3092\u81ea\u52d5\u3067\u9664\u5916\u3059\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3046\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/strong><\/dd>\n<\/dl><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3057\u307e\u3046\u3068\u3001\u9001\u4fe1\u30e1\u30fc\u30eb\u306f\u307b\u3068\u3093\u3069\u306e\u5b9b\u5148\u306b\u5c4a\u304b\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br 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