{"id":19490,"date":"2025-09-01T10:01:52","date_gmt":"2025-09-01T01:01:52","guid":{"rendered":"https:\/\/www.synergy-marketing.co.jp\/blog\/?p=19490"},"modified":"2026-03-02T14:21:13","modified_gmt":"2026-03-02T05:21:13","slug":"mail-delivery-system_solution","status":"publish","type":"post","link":"https:\/\/www.synergy-marketing.co.jp\/blog\/mail-delivery-system_solution","title":{"rendered":"maildeliverysystem\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\uff1f\u5c4a\u304f\u7406\u7531\u3068\u5bfe\u51e6\u6cd5\u3092\u89e3\u8aac"},"content":{"rendered":"<div class=\"post-content\">\n<div class=\"box box-gray\">\n<p><strong>&lt;\u3053\u306e\u8a18\u4e8b\u3067\u308f\u304b\u308b\u3053\u3068&gt;<\/strong><\/p>\n<ul>\n<li>\u300cmaildeliverysystem\u300d\u304b\u3089\u5c4a\u304f\u30e1\u30fc\u30eb\u306f\u3001\u9001\u4fe1\u30a8\u30e9\u30fc\u3092\u77e5\u3089\u305b\u308b\u81ea\u52d5\u901a\u77e5\u3067\u3042\u308a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<li>\u914d\u4fe1\u30a8\u30e9\u30fc\u306e\u4e3b\u306a\u539f\u56e0\u306b\u306f\u3001\u5b58\u5728\u3057\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u30df\u30b9\u3001\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306e\u5bb9\u91cf\u8d85\u904e\u3001\u30b5\u30fc\u30d0\u306e\u4e0d\u5177\u5408\u3001\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u306e\u5bb9\u91cf\u8d85\u904e\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li>\u53d7\u4fe1\u62d2\u5426\u8a2d\u5b9a\u3084\u30a6\u30a4\u30eb\u30b9\u691c\u51fa\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u672a\u8a2d\u5b9a\u306a\u3069\u3001\u898b\u843d\u3068\u3055\u308c\u304c\u3061\u306a\u8981\u56e0\u306b\u3088\u3063\u3066\u3082\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/li>\n<li>\u914d\u4fe1\u30a8\u30e9\u30fc\u3084\u5230\u9054\u7387\u306e\u4f4e\u4e0b\u3092\u9632\u3050\u305f\u3081\u306b\u306f\u3001\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u306e\u81ea\u52d5\u51e6\u7406\u3084\u8a8d\u8a3c\u652f\u63f4\u3001\u30ea\u30b9\u30c8\u7ba1\u7406\u6a5f\u80fd\u306a\u3069\u3092\u5099\u3048\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u300cSynergy!\u300d\u306e\u6d3b\u7528\u304c\u52b9\u679c\u7684\u3067\u3059\u3002<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/545_mainvisual.png\" alt=\"maildeliverysystem\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\uff1f\u5c4a\u304f\u7406\u7531\u3068\u5bfe\u51e6\u6cd5\u3092\u89e3\u8aac\" width=\"750\" height=\"456\" \/><\/p>\n<p>\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u305f\u76f4\u5f8c\u306b\u300cmaildeliverysystem\u300d\u3084\u300cMAILER-DAEMON\u300d\u304b\u3089\u30a8\u30e9\u30fc\u901a\u77e5\u304c\u5c4a\u3044\u305f\u7d4c\u9a13\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f\u3053\u308c\u3089\u306e\u901a\u77e5\u306f\u3001\u5b9f\u306f\u30e1\u30fc\u30eb\u304c\u76f8\u624b\u306b\u5c4a\u304b\u306a\u304b\u3063\u305f\u3053\u3068\u3092\u77e5\u3089\u305b\u308b\u91cd\u8981\u306a\u81ea\u52d5\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u3059\u3002<\/p>\n<p>\u30a2\u30c9\u30ec\u30b9\u306e\u5165\u529b\u30df\u30b9\u3084\u76f8\u624b\u306e\u5bb9\u91cf\u4e0d\u8db3\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u8a8d\u8a3c\u8a2d\u5b9a\u4e0d\u5099\u306a\u3069\u3001\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u306f\u3055\u307e\u3056\u307e\u3067\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001\u300cmaildeliverysystem\u300d\u306e\u6b63\u4f53\u3068\u610f\u5473\u3001\u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\u3001\u3055\u3089\u306b\u306f\u30a8\u30e9\u30fc\u3092\u672a\u7136\u306b\u9632\u3050\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<div class=\"inner-cta\">\n<div class=\"inner-cta-content\">\n<div class=\"inner-cta-content-img\">\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.synergy-marketing.co.jp\/wp\/wp-content\/uploads\/thumb_toranomaki_basics.png\" alt=\"\u3053\u308c\u304b\u3089\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u3092\u59cb\u3081\u308b\u65b9\u306f\u5fc5\u898b\u306e\u8cc7\u6599\u3067\u3059\uff01\" width=\"200\" height=\"150\" \/><\/p>\n<\/div>\n<div class=\"inner-cta-content-text\">\n<h4>\u3053\u308c\u304b\u3089\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u3092\u59cb\u3081\u308b\u65b9\u306f\u5fc5\u898b\u306e\u8cc7\u6599\u3067\u3059\uff01<\/h4>\n<p>\u30e1\u30eb\u30de\u30ac\u6210\u529f\u306e\u30ab\u30ae\u306f\u3001\u6700\u9069\u306a\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u65b9\u6cd5\u3092\u77e5\u308b\u3053\u3068\u3002\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u306e\u59cb\u3081\u65b9\u3092\u5b66\u3079\u308b\u8cc7\u6599\u3067\u3001\u57fa\u672c\u3092\u62bc\u3055\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n<p class=\"inner-cta-content-btn\"><a id=\"ct-blog-innnercta-01\" class=\"btn btn-red btn-block\" href=\"https:\/\/form.synergy-marketing.co.jp\/webapp\/form\/18784_mubb_10\/index.do?code=toranomaki_basics\" target=\"_blank\" rel=\"noopener\">\u8cc7\u6599\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2>maildeliverysystem\u3068\u306f\uff1f<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19493\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/545_image01.png\" alt=\"maildeliverysystem\u3068\u306f\uff1f\" width=\"750\" height=\"456\" srcset=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/545_image01.png 750w, https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/545_image01-230x140.png 230w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>\u307e\u305a\u306f\u300cmaildeliverysystem\u300d\u306e\u6b63\u4f53\u3092\u6b63\u3057\u304f\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u3053\u3067\u306fmaildeliverysystem\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u3067\u306f\u306a\u3044\u3053\u3068\u3068\u3001MAILER-DAEMON\u306e\u9055\u3044\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h3>maildeliverysystem\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u3067\u306f\u306a\u3044<\/h3>\n<p>\u300cMail Delivery Subsystem\u300d\u306f\u3001\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u304c\u76f8\u624b\u306b\u5c4a\u304b\u306a\u304b\u3063\u305f\u969b\u306b\u3001\u81ea\u52d5\u3067\u9001\u4fe1\u3055\u308c\u308b\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u3067\u3059\u3002\u4ef6\u540d\u3084\u672c\u6587\u304c\u82f1\u8a9e\u3067\u66f8\u304b\u308c\u3066\u3044\u308b\u305f\u3081\u3001<a href=\"https:\/\/www.synergy-marketing.co.jp\/glossary\/spam-mail\/\" target=\"_blank\" rel=\"noopener\">\u30b9\u30d1\u30e0<\/a>\u3068\u8aa4\u89e3\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u5b9f\u969b\u306b\u306f\u91cd\u8981\u306a\u30a8\u30e9\u30fc\u60c5\u5831\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u300c\u5b58\u5728\u3057\u306a\u3044\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u300d\u300c\u53d7\u4fe1\u62d2\u5426\u3055\u308c\u305f\u300d\u300c\u5bb9\u91cf\u30aa\u30fc\u30d0\u30fc\u300d\u306a\u3069\u3001\u914d\u4fe1\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u304c\u8a73\u3057\u304f\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u9001\u4fe1\u76f4\u5f8c\u306b\u5c4a\u304f\u3053\u3068\u3082\u3042\u308c\u3070\u3001\u6570\u6642\u9593\u5f8c\u306b\u901a\u77e5\u3055\u308c\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308b\u305f\u3081\u3001\u898b\u843d\u3068\u3055\u305a\u5185\u5bb9\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>maildeliverysystem\u3068MAILER-DAEMON\u306e\u9055\u3044<\/h3>\n<p>\u300cMail Delivery Subsystem\u300d\u3084\u300cMAILER-DAEMON\u300d\u306f\u3001\u3044\u305a\u308c\u3082\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u30a8\u30e9\u30fc\u6642\u306b\u81ea\u52d5\u3067\u9001\u3089\u308c\u3066\u304f\u308b\u901a\u77e5\u30e1\u30fc\u30eb\u306e\u5dee\u51fa\u4eba\u540d\u3084\u4ef6\u540d\u3068\u3057\u3066\u4f7f\u308f\u308c\u307e\u3059\u3002\u898b\u305f\u76ee\u306e\u9055\u3044\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u6a5f\u80fd\u7684\u306a\u5dee\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3069\u3061\u3089\u3082\u3001\u76f8\u624b\u5074\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u304c\u30a8\u30e9\u30fc\u3092\u691c\u77e5\u3057\u305f\u969b\u306b\u3001\u30a8\u30e9\u30fc\u306e\u8a73\u7d30\u3092\u77e5\u3089\u305b\u308b\u305f\u3081\u306b\u81ea\u52d5\u751f\u6210\u3055\u308c\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u300cPostmaster\u300d\u3068\u3044\u3046\u540d\u79f0\u3082\u540c\u69d8\u306e\u5f79\u5272\u3067\u4f7f\u308f\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3044\u305a\u308c\u3082\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u306e\u516c\u5f0f\u306a\u901a\u77e5\u3067\u3042\u308a\u3001\u30b9\u30d1\u30e0\u3067\u306f\u306a\u3044\u305f\u3081\u3001\u5185\u5bb9\u3092\u78ba\u8a8d\u3057\u3066\u5bfe\u5fdc\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>maildeliverysystem\u304c\u5c4a\u304f\u4e3b\u306a\u7406\u7531\u3068\u5bfe\u51e6\u6cd5<\/h2>\n<p>\u30a8\u30e9\u30fc\u901a\u77e5\u306e\u672c\u6587\u306b\u306f\u3001\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u304b\u3063\u305f\u539f\u56e0\u304c\u5fc5\u305a\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u7279\u306b\u983b\u7e41\u306b\u898b\u3089\u308c\u308b5\u3064\u306e\u30a8\u30e9\u30fc\u539f\u56e0\u3068\u3001\u305d\u308c\u305e\u308c\u306e\u5bfe\u51e6\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>User unknown\u300c\u30e6\u30fc\u30b6\u30fc\u540d\u304c\u5b58\u5728\u3057\u306a\u3044\u300d<\/h3>\n<p>\u300cUser unknown\u300d\u3084\u300c550 5.1.1 User unknown\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u306f\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e@\u3088\u308a\u524d\u306e\u90e8\u5206\uff08\u4f8b\uff1ataro.yamada@example.com\u306etaro.yamada\u306e\u90e8\u5206\uff09\u304c\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u306b\u8fd4\u3055\u308c\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u76f8\u624b\u304c\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5909\u66f4\u3057\u305f\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u524a\u9664\u3057\u305f\u3001\u3042\u308b\u3044\u306f\u5358\u306a\u308b\u30b9\u30da\u30eb\u30df\u30b9\u304c\u539f\u56e0\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30a8\u30e9\u30fc\u304c\u5c4a\u3044\u305f\u3089\u3001\u307e\u305a\u306f\u5165\u529b\u3057\u305f\u30a2\u30c9\u30ec\u30b9\u306b\u8aa4\u5b57\u304c\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u540d\u523a\u3084\u904e\u53bb\u306e\u30e1\u30fc\u30eb\u3001SNS\u306e\u9023\u7d61\u5148\u306a\u3069\u304b\u3089\u6b63\u3057\u3044\u30a2\u30c9\u30ec\u30b9\u3092\u63a2\u3059\u3053\u3068\u3082\u6709\u52b9\u3067\u3059\u3002\u76f8\u624b\u306b\u76f4\u63a5\u78ba\u8a8d\u3067\u304d\u308b\u5834\u5408\u306f\u3001\u73fe\u5728\u4f7f\u3063\u3066\u3044\u308b\u30a2\u30c9\u30ec\u30b9\u3092\u6559\u3048\u3066\u3082\u3089\u3046\u306e\u304c\u78ba\u5b9f\u306a\u5bfe\u51e6\u6cd5\u3067\u3059\u3002<\/p>\n<h3>Host unknown\uff0fHost not found\u300c\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u5b58\u5728\u3057\u306a\u3044\u300d<\/h3>\n<p>\u300cHost unknown\u300d\u3084\u300c550 Host not found\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u306f\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e@\u4ee5\u964d\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u5b58\u5728\u3057\u306a\u3044\u3001\u307e\u305f\u306fDNS\u4e0a\u3067\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u300c\uff20gmail.con\u300d\u306a\u3069\u306e\u30bf\u30a4\u30d7\u30df\u30b9\u3084\u3001\u5ec3\u6b62\u3055\u308c\u305f\u30c9\u30e1\u30a4\u30f3\u306b\u9001\u4fe1\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u304c\u51fa\u305f\u969b\u306f\u3001\u30a2\u30c9\u30ec\u30b9\u306e\u5f8c\u534a\u90e8\u5206\u306b\u30b9\u30da\u30eb\u30df\u30b9\u304c\u306a\u3044\u304b\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u307e\u305f\u3001\u76f8\u624b\u306b\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u518d\u78ba\u8a8d\u3057\u3066\u3082\u3089\u3046\u306e\u3082\u6709\u52b9\u3067\u3059\u3002\u7279\u306b\u4f01\u696d\u306e\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u306a\u3069\u306f\u3001\u5ec3\u6b62\u30fb\u5909\u66f4\u306e\u53ef\u80fd\u6027\u3082\u3042\u308b\u305f\u3081\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h3>Message size exceeds remaining quota\uff0fover quota\u300c\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u5bb9\u91cf\u8d85\u904e\u300d<\/h3>\n<p>\u300cover quota\u300d\u3084\u300cmailbox full\u300d\u300c552 5.2.2 mailbox full\u300d\u3068\u3044\u3063\u305f\u30a8\u30e9\u30fc\u306f\u3001\u76f8\u624b\u306e\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u304c\u5bb9\u91cf\u30aa\u30fc\u30d0\u30fc\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u3053\u306e\u72b6\u614b\u3067\u306f\u3001\u65b0\u3057\u3044\u30e1\u30fc\u30eb\u3092\u53d7\u4fe1\u3067\u304d\u305a\u3001\u81ea\u52d5\u7684\u306b\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8fd4\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u51e6\u6cd5\u3068\u3057\u3066\u306f\u3001\u76f8\u624b\u306b\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306e\u5bb9\u91cf\u3092\u78ba\u8a8d\u3057\u3066\u3082\u3089\u3044\u3001\u4e0d\u8981\u306a\u30e1\u30fc\u30eb\u3092\u524a\u9664\u3059\u308b\u306a\u3069\u3057\u3066\u7a7a\u304d\u3092\u4f5c\u3063\u3066\u3082\u3089\u3046\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059\u3002\u7dca\u6025\u306e\u7528\u4ef6\u3067\u3042\u308c\u3070\u3001\u5225\u306e\u9023\u7d61\u624b\u6bb5\u3092\u5229\u7528\u3057\u307e\u3057\u3087\u3046\u3002\u6570\u65e5\u7d4c\u3063\u3066\u304b\u3089\u518d\u9001\u3059\u308b\u3053\u3068\u3067\u3001\u76f8\u624b\u306e\u30dc\u30c3\u30af\u30b9\u304c\u56de\u5fa9\u3057\u3066\u53d7\u4fe1\u53ef\u80fd\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>Message could not be delivered\u300c\u76f8\u624b\u30b5\u30fc\u30d0\u304c\u5fdc\u7b54\u3057\u3066\u3044\u306a\u3044\u300d<\/h3>\n<p>\u300cMessage could not be delivered to one or more recipients\u300d\u3084\u300cDelivery temporarily suspended\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u306f\u3001\u76f8\u624b\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u304c\u4e00\u6642\u7684\u306b\u30c0\u30a6\u30f3\u3057\u3066\u3044\u308b\u3001\u307e\u305f\u306f\u4f55\u3089\u304b\u306e\u7406\u7531\u3067\u901a\u4fe1\u3067\u304d\u306a\u3044\u72b6\u614b\u3067\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u51e6\u6cd5\u3068\u3057\u3066\u306f\u3001\u6570\u6642\u9593\uff5e\u6570\u65e5\u5f8c\u306b\u3082\u3046\u4e00\u5ea6\u9001\u3063\u3066\u307f\u308b\u3053\u3068\u3001\u3042\u308b\u3044\u306f\u76f8\u624b\u306b\u30b5\u30fc\u30d0\u306e\u7a3c\u50cd\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u3066\u3082\u3089\u3046\u3053\u3068\u304c\u6709\u52b9\u3067\u3059\u3002\u9577\u671f\u9593\u30a8\u30e9\u30fc\u304c\u7d9a\u304f\u3088\u3046\u3067\u3042\u308c\u3070\u3001\u5225\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u5b9b\u306b\u9001\u4fe1\u3059\u308b\u304b\u3001\u307b\u304b\u306e\u9023\u7d61\u624b\u6bb5\u3092\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>Message exceeds maximum fixed size\uff0fis too large\u300c\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u306a\u3069\u3067\u5bb9\u91cf\u8d85\u904e\u300d<\/h3>\n<p>\u300cMessage size exceeds maximum allowed size\u300d\u3084\u300c552 5.3.4 Message too big\u300d\u3068\u3044\u3063\u305f\u30a8\u30e9\u30fc\u306f\u3001\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u306e\u30b5\u30a4\u30ba\u304c\u76f8\u624b\u5074\u306e\u4e0a\u9650\u3092\u8d85\u3048\u3066\u3057\u307e\u3063\u305f\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u7279\u306b\u753b\u50cf\u3084PDF\u306a\u3069\u5927\u304d\u306a\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u3092\u9001\u308b\u969b\u306b\u8d77\u3053\u308a\u3084\u3059\u3044\u30a8\u30e9\u30fc\u3067\u3059\u3002<\/p>\n<p>\u5bfe\u51e6\u6cd5\u3068\u3057\u3066\u306f\u3001\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u3092\u5727\u7e2e\u3057\u305f\u308a\u3001\u8907\u6570\u306e\u30e1\u30fc\u30eb\u306b\u5206\u3051\u3066\u9001\u4fe1\u3057\u305f\u308a\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001Google Drive\u3084Dropbox\u3068\u3044\u3063\u305f\u30af\u30e9\u30a6\u30c9\u30b9\u30c8\u30ec\u30fc\u30b8\u3092\u6d3b\u7528\u3057\u3001\u5171\u6709\u30ea\u30f3\u30af\u3092\u9001\u308b\u3053\u3068\u3067\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u672c\u6587\u306e\u30dc\u30ea\u30e5\u30fc\u30e0\u3092\u524a\u6e1b\u3059\u308b\u306e\u3082\u4e00\u3064\u306e\u624b\u6bb5\u3067\u3059\u3002<\/p>\n<h2>\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u5c4a\u304f\u307b\u304b\u306e\u7406\u7531\u3068\u5bfe\u51e6\u6cd5<\/h2>\n<p>\u4e3b\u8981\u306a\u30a8\u30e9\u30fc\u539f\u56e0\u306b\u5f53\u3066\u306f\u307e\u3089\u306a\u304f\u3066\u3082\u3001\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u898b\u843d\u3068\u3057\u304c\u3061\u306a\u300c\u53d7\u4fe1\u5074\u306e\u8a2d\u5b9a\u300d\u300c\u9001\u4fe1\u5185\u5bb9\u306e\u554f\u984c\u300d\u300c\u9001\u4fe1\u5074\u306e\u6280\u8853\u7684\u306a\u554f\u984c\u300d\u3068\u3044\u30463\u3064\u306e\u30b1\u30fc\u30b9\u3068\u5bfe\u51e6\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3>\u53d7\u4fe1\u5074\u306e\u8a2d\u5b9a\u306b\u3088\u308b\u30a8\u30e9\u30fc<\/h3>\n<p>\u76f8\u624b\u304cPC\u30e1\u30fc\u30eb\u306e\u53d7\u4fe1\u3092\u62d2\u5426\u3057\u3066\u3044\u305f\u308a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a3\u30eb\u30bf\u306b\u3088\u3063\u3066\u610f\u56f3\u305b\u305a\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f\u308a\u3059\u308b\u30b1\u30fc\u30b9\u3067\u3059\u3002\u307e\u305a\u306f\u76f8\u624b\u306b\u9023\u7d61\u3057\u3001\u53d7\u4fe1\u8a31\u53ef\u30ea\u30b9\u30c8\u3078\u306e\u8ffd\u52a0\u3084\u30c9\u30e1\u30a4\u30f3\u6307\u5b9a\u53d7\u4fe1\u306e\u8a2d\u5b9a\u3092\u4f9d\u983c\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u9001\u4fe1\u8005\u5074\u3068\u3057\u3066\u306f\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u8aa4\u5224\u5b9a\u3055\u308c\u306a\u3044\u3088\u3046\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h3>\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u3084\u672c\u6587\u306e\u554f\u984c\u306b\u3088\u308b\u30a8\u30e9\u30fc<\/h3>\n<p>\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u3068\u3057\u3066\u3001\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u3084\u672c\u6587\u306b\u554f\u984c\u304c\u3042\u308b\u30b1\u30fc\u30b9\u3082\u898b\u843d\u3068\u305b\u307e\u305b\u3093\u3002\u305f\u3068\u3048\u3070\u3001\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u304c\u30a6\u30a4\u30eb\u30b9\u306b\u611f\u67d3\u3057\u3066\u3044\u305f\u5834\u5408\u3001\u300cinfected with the virus\u300d\u3068\u3044\u3063\u305f\u8b66\u544a\u3068\u3068\u3082\u306b\u3001\u81ea\u52d5\u7684\u306b\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30e1\u30fc\u30eb\u672c\u6587\u306e1\u884c\u304c\u6975\u7aef\u306b\u9577\u3059\u304e\u308b\u3068\u300cLine Too Long\u300d\u306a\u3069\u306e\u30a8\u30e9\u30fc\u304c\u8fd4\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u51e6\u6cd5\u3068\u3057\u3066\u306f\u3001\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u3092\u9001\u308b\u524d\u306b\u30a6\u30a4\u30eb\u30b9\u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u65bd\u3057\u3001\u672c\u6587\u306b\u306f\u9069\u5207\u306b\u6539\u884c\u3092\u5165\u308c\u3066\u8aad\u307f\u3084\u3059\u304f\u6574\u3048\u308b\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u672c\u6587\u306e\u5185\u5bb9\u3092\u8981\u7d04\u3057\u305f\u308a\u3001\u8907\u6570\u56de\u306b\u5206\u3051\u3066\u9001\u4fe1\u3059\u308b\u306a\u3069\u306e\u5de5\u592b\u3082\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n<h3>\u9001\u4fe1\u5074\u306e\u6280\u8853\u7684\u30fb\u74b0\u5883\u7684\u306a\u554f\u984c<\/h3>\n<p>\u53d7\u4fe1\u5074\u3067\u306f\u306a\u304f\u3001\u9001\u4fe1\u5074\u306e\u8a2d\u5b9a\u3084\u74b0\u5883\u306b\u554f\u984c\u304c\u3042\u308b\u5834\u5408\u3082\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u539f\u56e0\u306b\u306a\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001SPF\u3084DKIM\u3001<a href=\"https:\/\/www.synergy-marketing.co.jp\/glossary\/dmarc\/\" target=\"_blank\" rel=\"noopener\">DMARC<\/a>\u3068\u3044\u3063\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306e\u8a8d\u8a3c\u8a2d\u5b9a\u304c\u4e0d\u5341\u5206\u3060\u3068\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u65ad\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u65b0\u3057\u304f\u4f5c\u6210\u3057\u305f\u30e1\u30fc\u30eb\u30a2\u30ab\u30a6\u30f3\u30c8\u304b\u3089\u4e00\u5ea6\u306b\u5927\u91cf\u306e\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3068\u3001\u30b9\u30d1\u30e0\u6271\u3044\u3055\u308c\u3066\u4fe1\u983c\u30b9\u30b3\u30a2\u304c\u4e0b\u304c\u308b\u6050\u308c\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u51e6\u6cd5\u3068\u3057\u3066\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306e\u6b63\u3057\u3044\u8a8d\u8a3c\u8a2d\u5b9a\u3092\u884c\u3046\u3053\u3068\u3001\u9001\u4fe1\u30da\u30fc\u30b9\u3092\u6bb5\u968e\u7684\u306b\u8abf\u6574\u3059\u308b\u3053\u3068\u3001\u3055\u3089\u306b\u30a8\u30e9\u30fc\u304c\u8fd4\u3055\u308c\u305f\u30a2\u30c9\u30ec\u30b9\u306f\u5b9a\u671f\u7684\u306b\u30ea\u30b9\u30c8\u304b\u3089\u524a\u9664\u30fb\u66f4\u65b0\u3059\u308b\u3053\u3068\u3067\u3001\u30c8\u30e9\u30d6\u30eb\u3092\u672a\u7136\u306b\u9632\u3052\u307e\u3059\u3002<\/p>\n<div class=\"box\">\n<div class=\"row\">\n<div class=\"col-md-3 col-sm-4 col-xs-6\"><a href=\"https:\/\/www.synergy-marketing.co.jp\/blog\/outlook_maildelivery\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/498_mainvisual.png\" alt=\"\u3010\u5fc5\u898b\uff01\u30e1\u30fc\u30eb\u914d\u4fe1\u62c5\u5f53\u8005\u5411\u3051\u3011Hotmail\u5b9b\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\uff1fOutlook\u306e\u5927\u91cf\u9001\u4fe1\u8005\u5411\u3051\u306e\u65b0\u3057\u3044\u8981\u4ef6\u3068\u5bfe\u7b56\u65b9\u6cd5\u3092\u8a73\u3057\u304f\u89e3\u8aac\" \/><\/a><\/div>\n<div class=\"col-md-9 col-sm-8 col-xs-6\"><a href=\"https:\/\/www.synergy-marketing.co.jp\/blog\/outlook_maildelivery\" target=\"_blank\" rel=\"noopener\"><strong>\u3010\u5fc5\u898b\uff01\u30e1\u30fc\u30eb\u914d\u4fe1\u62c5\u5f53\u8005\u5411\u3051\u3011Hotmail\u5b9b\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\uff1fOutlook\u306e\u5927\u91cf\u9001\u4fe1\u8005\u5411\u3051\u306e\u65b0\u3057\u3044\u8981\u4ef6\u3068\u5bfe\u7b56\u65b9\u6cd5\u3092\u8a73\u3057\u304f\u89e3\u8aac<\/strong><\/a><\/div>\n<\/div>\n<\/div>\n<h2>\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3066\u3044\u306a\u3044\u306e\u306bmaildeliverysystem\u304b\u3089\u30e1\u30fc\u30eb\u304c\u5927\u91cf\u306b\u5c4a\u304f\u5834\u5408<\/h2>\n<p>\u30e1\u30fc\u30eb\u3092\u9001\u3063\u305f\u899a\u3048\u304c\u306a\u3044\u306e\u306b\u5927\u91cf\u306e\u30a8\u30e9\u30fc\u901a\u77e5\u304c\u5c4a\u304f\u306e\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u8b66\u544a\u3067\u3059\u3002\u7b2c\u4e09\u8005\u304c\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u4e0d\u6b63\u30ed\u30b0\u30a4\u30f3\u3057\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5143\u3068\u3057\u3066\u60aa\u7528\u3057\u3066\u3044\u308b\uff08<a href=\"https:\/\/www.synergy-marketing.co.jp\/glossary\/spoofing\/\" target=\"_blank\" rel=\"noopener\">\u306a\u308a\u3059\u307e\u3057<\/a>\uff09\u53ef\u80fd\u6027\u304c\u7591\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306a\u898b\u899a\u3048\u306e\u306a\u3044\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\u304c\u5c4a\u3044\u305f\u3089\u3001\u672c\u6587\u4e2d\u306eURL\u3084\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u306f\u7d76\u5bfe\u306b\u958b\u304b\u305a\u3001\u3059\u3050\u306b\u30e1\u30fc\u30eb\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u63a8\u6e2c\u3055\u308c\u306b\u304f\u3044\u8907\u96d1\u306a\u3082\u306e\u3078\u5909\u66f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u53ef\u80fd\u3067\u3042\u308c\u3070\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u3055\u3089\u306b\u5f37\u5316\u3059\u308b\u305f\u3081\u306b\u4e8c\u8981\u7d20\u8a8d\u8a3c\uff08\u30d1\u30b9\u30ef\u30fc\u30c9\u306b\u52a0\u3048\u3066\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u30a2\u30d7\u30ea\u306a\u3069\u3067\u751f\u6210\u3055\u308c\u308b\u78ba\u8a8d\u30b3\u30fc\u30c9\u3082\u5165\u529b\u3059\u308b\u4ed5\u7d44\u307f\uff09\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n<div class=\"box\">\n<div class=\"row\">\n<div class=\"col-md-3 col-sm-4 col-xs-6\"><a href=\"https:\/\/www.synergy-marketing.co.jp\/blog\/mail-delivery-system_security\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/525_mainvisual.png\" alt=\"\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5fc5\u8981\u306a\u7406\u7531\u306f\uff1f\u30ea\u30b9\u30af\u3068\u5bfe\u7b56\u3092\u89e3\u8aac\" \/><\/a><\/div>\n<div class=\"col-md-9 col-sm-8 col-xs-6\"><a href=\"https:\/\/www.synergy-marketing.co.jp\/blog\/mail-delivery-system_security\" target=\"_blank\" rel=\"noopener\"><strong>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5fc5\u8981\u306a\u7406\u7531\u306f\uff1f\u30ea\u30b9\u30af\u3068\u5bfe\u7b56\u3092\u89e3\u8aac<\/strong><\/a><\/div>\n<\/div>\n<\/div>\n<h2>\u30e1\u30fc\u30eb\u914d\u4fe1\u30a8\u30e9\u30fc\u3092\u6839\u672c\u304b\u3089\u9632\u3050\u306b\u306f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u304c\u304a\u3059\u3059\u3081<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19494\" src=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/545_image02.png\" alt=\"\u30e1\u30fc\u30eb\u914d\u4fe1\u30a8\u30e9\u30fc\u3092\u6839\u672c\u304b\u3089\u9632\u3050\u306b\u306f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u304c\u304a\u3059\u3059\u3081\" width=\"750\" height=\"456\" srcset=\"https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/545_image02.png 750w, https:\/\/www.synergy-marketing.co.jp\/blog\/wp\/wp-content\/uploads\/545_image02-230x140.png 230w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30a8\u30e9\u30fc\u306f\u3001\u5358\u306a\u308b\u30b7\u30b9\u30c6\u30e0\u4e0a\u306e\u554f\u984c\u306b\u3068\u3069\u307e\u3089\u305a\u3001\u958b\u5c01\u7387\u306e\u4f4e\u4e0b\u3084\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u767b\u9332\u306b\u3088\u308b\u5230\u9054\u7387\u60aa\u5316\u306a\u3069\u3001\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u5168\u4f53\u306b\u6df1\u523b\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u30a8\u30e9\u30fc\u3092\u6839\u672c\u304b\u3089\u9632\u3050\u306b\u306f\u3001\u5c02\u7528\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u5c0e\u5165\u3059\u308b\u306e\u304c\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3048\u3070\u3001\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u306e\u81ea\u52d5\u51e6\u7406\u3084\u30ea\u30b9\u30c8\u306e\u5b9a\u671f\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\u3001\u5373\u6642\u306e<a href=\"https:\/\/www.synergy-marketing.co.jp\/glossary\/optout\/\" target=\"_blank\" rel=\"noopener\">\u30aa\u30d7\u30c8\u30a2\u30a6\u30c8<\/a>\u5bfe\u5fdc\u306b\u3088\u308a\u3001\u30a8\u30e9\u30fc\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u307e\u3059\u3002\u307e\u305f\u3001SPF\uff0fDKIM\uff0fDMARC\u306a\u3069\u306e\u8a8d\u8a3c\u8a2d\u5b9a\u3082\u7c21\u5358\u306b\u884c\u3048\u3001\u306a\u308a\u3059\u307e\u3057\u9632\u6b62\u306b\u3082\u6709\u52b9\u3002\u4e00\u5ea6\u306b\u5927\u91cf\u306e\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3068\u53d7\u4fe1\u30b5\u30fc\u30d0\u306b\u62d2\u5426\u3055\u308c\u3084\u3059\u3044\u305f\u3081\u3001\u914d\u4fe1\u901f\u5ea6\u3084IP\u30a2\u30c9\u30ec\u30b9\u306e\u81ea\u52d5\u5236\u5fa1\u3067\u53d7\u4fe1\u62d2\u5426\u3082\u56de\u907f\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u306e\u914d\u4fe1\u5206\u6790\u3084\u5c02\u9580\u30b5\u30dd\u30fc\u30c8\u306e\u5bfe\u5fdc\u3082\u5145\u5b9f\u3057\u3066\u304a\u308a\u3001\u5b89\u5fc3\u3057\u3066\u904b\u7528\u3067\u304d\u307e\u3059\u3002\u306a\u304a\u3001\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u591a\u304f\u306e\u7a2e\u985e\u304c\u3042\u308b\u305f\u3081\u3001\u81ea\u793e\u306e\u898f\u6a21\u3084\u76ee\u7684\u306b\u5408\u3063\u305f\u3082\u306e\u3092\u614e\u91cd\u306b\u9078\u3076\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h2><span data-sheets-root=\"1\">maildeliverysystem\u306b\u3064\u3044\u3066\u3088\u304f\u3042\u308b\u8cea\u554f<\/span><\/h2>\n<h3>Q1:\u300cMail Delivery\u300d\u3068\u306f\u3069\u3046\u3044\u3046\u610f\u5473\u3067\u3059\u304b\uff1f<\/h3>\n<p>A:\u300cMail Delivery\uff08Subsystem\uff09\u300d\u3068\u306f\u3001\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u304c\u4f55\u3089\u304b\u306e\u7406\u7531\u3067\u76f8\u624b\u306b\u5c4a\u304b\u306a\u304b\u3063\u305f\u5834\u5408\u306b\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u304b\u3089\u81ea\u52d5\u7684\u306b\u8fd4\u9001\u3055\u308c\u308b\u300c\u914d\u4fe1\u4e0d\u80fd\u901a\u77e5\uff08\u30a8\u30e9\u30fc\u30e1\u30fc\u30eb\uff09\u300d\u306e\u3053\u3068\u3067\u3059\u3002\u82f1\u8a9e\u3067\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u304c\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3067\u306f\u306a\u304f\u3001\u5b9b\u5148\u9593\u9055\u3044\u3084\u5bb9\u91cf\u30aa\u30fc\u30d0\u30fc\u306a\u3069\u3001\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u304b\u3063\u305f\u5177\u4f53\u7684\u306a\u539f\u56e0\u3092\u77e5\u3089\u305b\u308b\u91cd\u8981\u306a\u901a\u77e5\u3067\u3059\u3002<\/p>\n<h3>Q2:Mail Delivery System\u3068MAILER-DAEMON\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>A:Mail Delivery System\u3068MAILER-DAEMON\u306f\u3001\u6a5f\u80fd\u7684\u306b\u9055\u3044\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3069\u3061\u3089\u3082\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u5931\u6557\u3057\u305f\u969b\u3001\u30b5\u30fc\u30d0\u304c\u81ea\u52d5\u751f\u6210\u3057\u3066\u9001\u308a\u8fd4\u3059\u30a8\u30e9\u30fc\u901a\u77e5\u306e\u5dee\u51fa\u4eba\u540d\u3084\u4ef6\u540d\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u308b\u540d\u79f0\u3067\u3059\u3002\u5229\u7528\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u3084\u30b7\u30b9\u30c6\u30e0\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u8868\u793a\u540d\u304c\u7570\u306a\u308b\u3060\u3051\u3067\u3001\u5f79\u5272\u3068\u3057\u3066\u306f\u540c\u3058\u304f\u300c\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u304b\u3063\u305f\u3053\u3068\u300d\u3068\u305d\u306e\u300c\u539f\u56e0\u300d\u3092\u4f1d\u3048\u308b\u305f\u3081\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n<h3>Q3:Mail Delivery Subsystem\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>A:\u300cMail Delivery Subsystem\u300d\u3068\u306f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u305d\u306e\u3082\u306e\u306e\u3053\u3068\u3067\u3059\u3002\u4e00\u822c\u7684\u306b\u306f\u9001\u4fe1\u30a8\u30e9\u30fc\u6642\u306b\u8fd4\u9001\u3055\u308c\u308b\u901a\u77e5\u30e1\u30fc\u30eb\u306e\u5dee\u51fa\u4eba\u540d\u3068\u3057\u3066\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u901a\u77e5\u306f\u30b9\u30d1\u30e0\u3067\u306f\u306a\u304f\u3001\u5b9b\u5148\u4e0d\u660e\u3084\u53d7\u4fe1\u62d2\u5426\u3001\u5bb9\u91cf\u8d85\u904e\u306a\u3069\u306e\u7406\u7531\u3067\u30e1\u30fc\u30eb\u304c\u6b63\u5e38\u306b\u914d\u9001\u3055\u308c\u306a\u304b\u3063\u305f\u3053\u3068\u3092\u9001\u4fe1\u8005\u306b\u77e5\u3089\u305b\u308b\u305f\u3081\u306e\u6b63\u898f\u306e\u30b7\u30b9\u30c6\u30e0\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u3059\u3002<\/p>\n<h3>Q4:Mail Delivery System\u304b\u3089\u30e1\u30fc\u30eb\u304c\u5c4a\u3044\u305f\u969b\u306e\u9069\u5207\u306a\u5bfe\u51e6\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>A:Mail Delivery System\u304b\u3089\u30e1\u30fc\u30eb\u304c\u5c4a\u3044\u305f\u969b\u306e\u9069\u5207\u306a\u5bfe\u51e6\u6cd5\u306f\u3001\u307e\u305a\u672c\u6587\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u78ba\u8a8d\u3057\u3001\u539f\u56e0\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u300cUser unknown\u300d\u306a\u3089\u5b9b\u5148\u306e\u518d\u78ba\u8a8d\u3001\u300cMailbox full\u300d\u306a\u3089\u76f8\u624b\u3078\u306e\u9023\u7d61\u306a\u3069\u3001\u539f\u56e0\u306b\u5fdc\u3058\u305f\u5bfe\u5fdc\u304c\u5fc5\u8981\u3067\u3059\u3002\u3082\u3057\u8eab\u306b\u899a\u3048\u306e\u306a\u3044\u5927\u91cf\u306e\u30a8\u30e9\u30fc\u901a\u77e5\u304c\u5c4a\u304f\u5834\u5408\u306f\u3001\u306a\u308a\u3059\u307e\u3057\u306b\u3088\u308b\u60aa\u7528\u306e\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u76f4\u3061\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5909\u66f4\u3059\u308b\u306a\u3069\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u672c\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u305f\u901a\u308a\u3001maildeliverysystem\u304b\u3089\u306e\u30e1\u30fc\u30eb\u306f\u91cd\u8981\u306a\u30a8\u30e9\u30fc\u901a\u77e5\u3067\u3059\u3002\u305d\u306e\u539f\u56e0\u306f\u5358\u7d14\u306a\u5b9b\u5148\u30df\u30b9\u304b\u3089\u3001\u5c02\u9580\u77e5\u8b58\u3092\u8981\u3059\u308b\u30b5\u30fc\u30d0\u3084\u8a8d\u8a3c\u306e\u554f\u984c\u307e\u3067\u591a\u5c90\u306b\u308f\u305f\u308a\u3001\u624b\u52d5\u3067\u306e\u5bfe\u5fdc\u3084\u7ba1\u7406\u306b\u306f\u9650\u754c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u304a\u3059\u3059\u3081\u306a\u306e\u304c\u3001\u5f53\u793e\u306e\u300eSynergy!\u300f\u3067\u3059\u3002Synergy!\u306f\u3001\u4f01\u696d\u306e\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u306b\u7279\u5316\u3057\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u3001\u30d0\u30a6\u30f3\u30b9\u30e1\u30fc\u30eb\u306e\u81ea\u52d5\u51e6\u7406\u3084\u5230\u9054\u7387\u306e\u53ef\u8996\u5316\u30ec\u30dd\u30fc\u30c8\u3001\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u306e\u81ea\u52d5\u9664\u5916\u306a\u3069\u3001\u7169\u96d1\u306a\u914d\u4fe1\u7ba1\u7406\u3092\u3059\u3079\u3066\u81ea\u52d5\u5316\u3057\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001SPF\uff0fDKIM\uff0fDMARC\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u652f\u63f4\u3084\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3092\u56de\u907f\u3059\u308b\u914d\u4fe1\u8a2d\u8a08\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001\u5230\u9054\u7387\u3092\u6700\u5927\u5316\u3057\u306a\u304c\u3089\u3001\u30a8\u30e9\u30fc\u30ea\u30b9\u30af\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u4ed5\u7d44\u307f\u304c\u6574\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001<a href=\"https:\/\/www.synergy-marketing.co.jp\/blog\/what_is_step_mail\" target=\"_blank\" rel=\"noopener\">\u30b9\u30c6\u30c3\u30d7\u30e1\u30fc\u30eb<\/a>\u3084\u30bb\u30b0\u30e1\u30f3\u30c8\u914d\u4fe1\u3001\u958b\u5c01\u30fb\u30af\u30ea\u30c3\u30af\u5206\u6790\u3068\u3044\u3063\u305f\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u6a5f\u80fd\u3082\u5145\u5b9f\u3057\u3066\u304a\u308a\u3001\u5358\u306a\u308b\u914d\u4fe1\u30c4\u30fc\u30eb\u306b\u3068\u3069\u307e\u3089\u306a\u3044\u300c\u58f2\u4e0a\u306b\u3064\u306a\u304c\u308b\u904b\u7528\u300d\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u5177\u4f53\u7684\u306a\u88fd\u54c1\u6a5f\u80fd\u306b\u3064\u3044\u3066\u306f\u3001\u305c\u3072\u4ee5\u4e0b\u306e\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u8cc7\u6599\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"cta-premium\">\n<h4><span class=\"color-red\">CRM\u30b7\u30b9\u30c6\u30e0\u300cSynergy!\u300d\u306e\u7279\u9577\u304c\u6a5f\u80fd\u5225\u3067\u308f\u304b\u308b\u8cc7\u6599\u3067\u3059\uff01<\/span><\/h4>\n<div class=\"cta-premium-content\">\n<div class=\"cta-premium-content-text\">\n<p>\u300cSynergy!\u300d\u306e\u5177\u4f53\u7684\u306a\u88fd\u54c1\u6a5f\u80fd\u306b\u3064\u3044\u3066\u306f\u3001\u305c\u3072\u4ee5\u4e0b\u306e\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u8cc7\u6599\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n<div class=\"cta-premium-content-img\"><a href=\"https:\/\/form.synergy-marketing.co.jp\/webapp\/form\/18784_mubb_11\/index.do?p=synergy\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" style=\"width: 100%;\" src=\"https:\/\/www.synergy-marketing.co.jp\/wp\/wp-content\/uploads\/thumb_synergy_catalog.png\" alt=\"CRM\u30b7\u30b9\u30c6\u30e0\u300cSynergy!\u300d\u306e\u7279\u9577\u304c\u6a5f\u80fd\u5225\u3067\u308f\u304b\u308b\u8cc7\u6599\u3067\u3059\uff01\" \/><\/a><\/div>\n<\/div>\n<p><a id=\"ct-blog-innnercta-02\" class=\"btn btn-red btn-block\" href=\"https:\/\/form.synergy-marketing.co.jp\/webapp\/form\/18784_mubb_11\/index.do?p=synergy\" target=\"_blank\" rel=\"noopener\">\u8cc7\u6599\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>&lt;\u3053\u306e\u8a18\u4e8b\u3067\u308f\u304b\u308b\u3053\u3068&gt; \u300cmaildeliverysystem\u300d\u304b\u3089\u5c4a\u304f\u30e1\u30fc\u30eb\u306f\u3001\u9001\u4fe1\u30a8\u30e9\u30fc\u3092\u77e5\u3089\u305b\u308b\u81ea\u52d5\u901a\u77e5\u3067\u3042\u308a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 \u914d\u4fe1\u30a8\u30e9\u30fc\u306e\u4e3b\u306a\u539f\u56e0\u306b\u306f\u3001\u5b58\u5728\u3057\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u3001\u30c9\u30e1\u30a4\u30f3\u306e\u30df\u30b9&#8230;<\/p>\n","protected":false},"author":83,"featured_media":19492,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10],"tags":[],"class_list":["post-19490","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mail-marketing"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.synergy-marketing.co.jp\/blog\/wp-json\/wp\/v2\/posts\/19490","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.synergy-marketing.co.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.synergy-marketing.co.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.synergy-marketing.co.jp\/blog\/wp-json\/wp\/v2\/users\/83"}],"replies":[{"embeddable":true,"href":"https:\/\/www.synergy-marketing.co.jp\/blog\/wp-json\/wp\/v2\/comments?post=19490"}],"version-history":[{"count":12,"href":"https:\/\/www.synergy-marketing.co.jp\/blog\/wp-json\/wp\/v2\/posts\/19490\/revisions"}],"predecessor-version":[{"id":21210,"href":"https:\/\/www.synergy-marketing.co.jp\/blog\/wp-json\/wp\/v2\/posts\/19490\/revisions\/21210"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.synergy-marketing.co.jp\/blog\/wp-json\/wp\/v2\/media\/19492"}],"wp:attachment":[{"href":"https:\/\/www.synergy-marketing.co.jp\/blog\/wp-json\/wp\/v2\/media?parent=19490"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.synergy-marketing.co.jp\/blog\/wp-json\/wp\/v2\/categories?post=19490"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.synergy-marketing.co.jp\/blog\/wp-json\/wp\/v2\/tags?post=19490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}