{"id":1648,"date":"2026-06-11T14:59:38","date_gmt":"2026-06-11T05:59:38","guid":{"rendered":"https:\/\/sheltie-garage.xyz\/tech\/?p=1648"},"modified":"2026-06-11T14:59:40","modified_gmt":"2026-06-11T05:59:40","slug":"docker-main-server%e3%81%abdmarc%e3%82%92%e8%a8%ad%e5%ae%9a%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/sheltie-garage.xyz\/tech\/2026\/06\/docker-main-server%e3%81%abdmarc%e3%82%92%e8%a8%ad%e5%ae%9a%e3%81%99%e3%82%8b\/","title":{"rendered":"Docker Main Server\u306bDMARC\u3092\u8a2d\u5b9a\u3059\u308b"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u500b\u4eba\u958b\u767aWeb\u30a2\u30d7\u30ea\u3067\u5229\u7528\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306bDMARC\u3092\u8a2d\u5b9a\u3057\u307e\u3059<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DMARC\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DMARC\u3068\u306f\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u5229\u7528\u3057\u3066\u3001\u9001\u4fe1\u5143\u306e\u6b63\u5f53\u6027\u3092\u8a3c\u660e\u3059\u308b\u305f\u3081\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059<br>\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u306a\u308a\u3059\u307e\u3057\u9632\u6b62\uff1aDKIM\u3001SPF\u3060\u3051\u3067\u306f\u5dee\u51fa\u4eba(From\u30d8\u30c3\u30c0)\u306e\u507d\u88c5\u306f\u898b\u7834\u308c\u307e\u305b\u3093\u304c\u3001DMARC\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u6b63\u5f53\u6027\u30c1\u30a7\u30c3\u30af\u304c\u884c\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059<\/li>\n\n\n\n<li>\u30dd\u30ea\u30b7\u30fc\u306e\u6307\u5b9a\uff1a\u30e1\u30fc\u30eb\u306b\u5bfe\u3057\u3066\u3069\u306e\u7528\u306b\u6271\u3046\u304b(\u76e3\u8996\u306e\u307f\u3001\u7834\u68c4\u3055\u305b\u308b\u306a\u3069)\u3092\u6c7a\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30dd\u30ea\u30b7\u30fc\u306f\u30e1\u30fc\u30eb\u306e\u53d7\u4fe1\u5074\u306b\u9069\u7528\u3055\u308c\u307e\u3059<\/li>\n\n\n\n<li>\u30ec\u30dd\u30fc\u30c8\u306e\u53d7\u4fe1\uff1a\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u3092\u507d\u88c5\u3057\u305f\u30e1\u30fc\u30eb\u3084\u3001\u8a8d\u8a3c\u3092\u5931\u6557\u3057\u305f\u30e1\u30fc\u30eb\u306b\u3064\u3044\u3066\u306e\u30ec\u30dd\u30fc\u30c8\u3092\u53d7\u3051\u53d6\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Docker Mail Server\u306b\u306fDMARC\u5c0e\u5165\u6e08\u307f\u3067\u3001DNS\u30ec\u30b3\u30fc\u30c9\u306b\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3059\u308b\u3060\u3051\u3067\u5c0e\u5165\u3067\u304d\u308b\u3068\u306e\u3053\u3068\u306a\u306e\u3067\u3001\u5b9f\u969b\u306b\u3084\u3063\u3066\u307f\u307e\u3059<br>(SPF\u3001DKIM\u304c\u8a2d\u5b9a\u6e08\u307f\u3067\u3042\u308b\u3053\u3068\u304c\u524d\u63d0\u3067\u3059)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DMARC\u3092\u8a2d\u5b9a\u3059\u308b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u5206\u306fGMO ConoHa\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306eDNS\u3088\u308a\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3057\u307e\u3059<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u5b9a\u4f8b\u306f\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>\u30bf\u30a4\u30d7:TXT\n\u30db\u30b9\u30c8:_dmarc.example.com\n\u5024:v=DMARC1; p=none; rua=mailto:dmarc-reports@example.com<\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"673\" src=\"https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_001-1024x673.png\" alt=\"\" class=\"wp-image-1649\" srcset=\"https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_001-1024x673.png 1024w, https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_001-300x197.png 300w, https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_001-768x505.png 768w, https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_001.png 1215w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5024\u306b\u306f\u4ed6\u306b\u3082\u8a2d\u5b9a\u3067\u304d\u308b\u9805\u76ee\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u4eca\u56de\u306f\u6700\u4f4e\u9650\u306e\u307f\u8a2d\u5b9a\u3057\u3066\u307e\u3059<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53c2\u8003\uff1aDMARC\u4ed5\u69d8<br><a href=\"https:\/\/www.naritai.jp\/guidance_record.html\">https:\/\/www.naritai.jp\/guidance_record.html<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u5206\u306e\u5834\u5408\u3001Cloudflare\u7121\u6599\u7248\u3082\u5229\u7528\u3057\u3066\u3044\u308b\u305f\u3081\u3001Cloudflare\u5074\u306b\u3082\u30ec\u30b3\u30fc\u30c9\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u305f<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"197\" src=\"https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_001-1-1024x197.png\" alt=\"\" class=\"wp-image-1653\" srcset=\"https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_001-1-1024x197.png 1024w, https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_001-1-300x58.png 300w, https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_001-1-768x148.png 768w, https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_001-1.png 1038w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u5b9a\u5f8c\u306fmxtoolbox\u306a\u3069\u3067\u8a2d\u5b9a\u304c\u6709\u52b9\u5316\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3067\u304d\u307e\u3059<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/mxtoolbox.com\/SuperTool.aspx\">https:\/\/mxtoolbox.com\/SuperTool.aspx<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"579\" height=\"230\" src=\"https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_002.png\" alt=\"\" class=\"wp-image-1654\" srcset=\"https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_002.png 579w, https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_002-300x119.png 300w\" sizes=\"auto, (max-width: 579px) 100vw, 579px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u5b9a\u5f8c\u3001\u500b\u4eba\u958b\u767aWeb\u30a2\u30d7\u30ea\u304b\u3089\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u3066\u307f\u307e\u3057\u305f<br>\u304d\u3061\u3093\u3068DMARC\u304cPASS\u306b\u306a\u3063\u3066\u3044\u307e\u3057\u305f\uff01<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"710\" height=\"179\" src=\"https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_003-1.png\" alt=\"\" class=\"wp-image-1656\" srcset=\"https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_003-1.png 710w, https:\/\/sheltie-garage.xyz\/tech\/wp-content\/uploads\/2026\/06\/20260611_003-1-300x76.png 300w\" sizes=\"auto, (max-width: 710px) 100vw, 710px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ee5\u4e0a\u3067\u3059<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u306a\u3093\u3068\u306a\u304fDMARC\u306e\u8a2d\u5b9a\u306f\u3081\u3093\u3069\u304f\u3055\u305d\u3046\u3060\u306a\u3068\u601d\u3063\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u8abf\u3079\u3066\u307f\u308b\u3068\u610f\u5916\u3068\u7c21\u5358\u3067\u3001\u6b63\u76f4\u3082\u3063\u3068\u65e9\u304f\u3084\u3063\u3066\u304a\u3051\u3070\u3088\u304b\u3063\u305f\u306a\u3068\u601d\u3063\u3066\u3044\u307e\u3059<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3067\u30e1\u30fc\u30eb\u306e\u4fe1\u983c\u6027\u3082\u5411\u4e0a\u3067\u304d\u305f\u306e\u3067\u3001\u30e1\u30fc\u30eb\u304c\u53d7\u4fe1\u3067\u304d\u306a\u3044\u3068\u3044\u3063\u305f\u554f\u984c\u304c\u6e1b\u308b\u3068\u826f\u3044\u306a\u3068\u601d\u3063\u3066\u3044\u307e\u3059<\/p>\n\n\n<div id=\"rinkerid1650\" class=\"yyi-rinker-contents  yyi-rinker-postid-1650 yyi-rinker-img-m yyi-rinker-catid-6 \">\n\t<div class=\"yyi-rinker-box\">\n\t\t<div class=\"yyi-rinker-image\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3394378&#038;p_id=54&#038;pc_id=54&#038;pl_id=616&#038;url=https%3A%2F%2Fsearch.rakuten.co.jp%2Fsearch%2Fmall%2FPostfix%2F%3Ff%3D1%26grp%3Dproduct\" rel=\"nofollow\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/thumbnail.image.rakuten.co.jp\/@0_mall\/book\/cabinet\/8731\/87311195.jpg?_ex=128x128\" width=\"128\" height=\"128\" class=\"yyi-rinker-main-img\" style=\"border: none;\"><\/a><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i.moshimo.com\/af\/i\/impression?a_id=3394378&amp;p_id=54&amp;pc_id=54&amp;pl_id=616\" width=\"1\" height=\"1\" style=\"border:none;\">\t\t\t\t\t<\/div>\n\t\t<div class=\"yyi-rinker-info\">\n\t\t\t<div class=\"yyi-rinker-title\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3394378&#038;p_id=54&#038;pc_id=54&#038;pl_id=616&#038;url=https%3A%2F%2Fsearch.rakuten.co.jp%2Fsearch%2Fmall%2FPostfix%2F%3Ff%3D1%26grp%3Dproduct\" rel=\"nofollow\">Postfix\u5b9f\u7528\u30ac\u30a4\u30c9 [ \u30ab\u30a4\u30eb\u30fbD\uff0e\u30c7\u30f3\u30c8 ]<\/a><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i.moshimo.com\/af\/i\/impression?a_id=3394378&amp;p_id=54&amp;pc_id=54&amp;pl_id=616\" width=\"1\" height=\"1\" style=\"border:none;\">\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"yyi-rinker-detail\">\n\t\t\t\t\t\t\t<div class=\"credit-box\">created by&nbsp;<a href=\"https:\/\/oyakosodate.com\/rinker\/\" rel=\"nofollow noopener\" target=\"_blank\" >Rinker<\/a><\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"price-box\">\n\t\t\t\t\t\t\t<span title=\"\" class=\"price\">\u00a53,520<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"price_at\">(2026\/6\/11 9:37:54\u6642\u70b9&nbsp;\u697d\u5929\u5e02\u5834\u8abf\u3079-<\/span><span title=\"\u3053\u306e\u30b5\u30a4\u30c8\u3067\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u306f\u5f53\u30b5\u30a4\u30c8\u306e\u4f5c\u6210\u8005\u306b\u3088\u308a\u904b\u55b6\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4fa1\u683c\u3001\u8ca9\u58f2\u53ef\u80fd\u60c5\u5831\u306f\u3001\u5909\u66f4\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u8cfc\u5165\u6642\u306b\u697d\u5929\u5e02\u5834\u5e97\u8217\uff08www.rakuten.co.jp\uff09\u306b\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u4fa1\u683c\u304c\u305d\u306e\u5546\u54c1\u306e\u8ca9\u58f2\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002\">\u8a73\u7d30)<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<ul class=\"yyi-rinker-links\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t                    <li class=\"amazonlink\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.amazon.co.jp\/gp\/search?ie=UTF8&amp;keywords=Postfix&amp;tag=monodon-22&amp;index=blended&amp;linkCode=ure&amp;creative=6339\" rel=\"nofollow\" class=\"yyi-rinker-link\">Amazon<\/a>\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<li class=\"rakutenlink\">\n\t\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3394378&amp;p_id=54&amp;pc_id=54&amp;pl_id=616&amp;url=https%3A%2F%2Fsearch.rakuten.co.jp%2Fsearch%2Fmall%2FPostfix%2F%3Ff%3D1%26grp%3Dproduct\" rel=\"nofollow\" class=\"yyi-rinker-link\">\u697d\u5929\u5e02\u5834<\/a><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i.moshimo.com\/af\/i\/impression?a_id=3394378&amp;p_id=54&amp;pc_id=54&amp;pl_id=616\" width=\"1\" height=\"1\" style=\"border:none;\">\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<li class=\"yahoolink\">\n\t\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3442618&amp;p_id=1225&amp;pc_id=1925&amp;pl_id=18502&amp;url=https%3A%2F%2Fshopping.yahoo.co.jp%2Fsearch%3Fp%3DPostfix\" rel=\"nofollow\" class=\"yyi-rinker-link\">Yahoo\u30b7\u30e7\u30c3\u30d4\u30f3\u30b0<\/a><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i.moshimo.com\/af\/i\/impression?a_id=3442618&amp;p_id=1225&amp;pc_id=1925&amp;pl_id=18502\" width=\"1\" height=\"1\" style=\"border:none;\">\t\t\t\t\t<\/li>\n\t\t\t\t                \t\t\t\t\t\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t<\/div>\n\t<\/div>\n<\/div>\n\n\n<div id=\"rinkerid1651\" class=\"yyi-rinker-contents  yyi-rinker-postid-1651 yyi-rinker-img-m yyi-rinker-catid-6 \">\n\t<div class=\"yyi-rinker-box\">\n\t\t<div class=\"yyi-rinker-image\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3394378&#038;p_id=54&#038;pc_id=54&#038;pl_id=616&#038;url=https%3A%2F%2Fsearch.rakuten.co.jp%2Fsearch%2Fmall%2FE%25E3%2583%25A1%25E3%2583%25BC%25E3%2583%25AB%25E3%2580%2580%25E3%2582%25BB%25E3%2582%25AD%25E3%2583%25A5%25E3%2583%25AA%25E3%2583%2586%25E3%2582%25A3%2F%3Ff%3D1%26grp%3Dproduct\" rel=\"nofollow\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/thumbnail.image.rakuten.co.jp\/@0_mall\/renet3\/cabinet\/ccc4\/0000552374.jpg?_ex=128x128\" width=\"128\" height=\"128\" class=\"yyi-rinker-main-img\" style=\"border: none;\"><\/a><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i.moshimo.com\/af\/i\/impression?a_id=3394378&amp;p_id=54&amp;pc_id=54&amp;pl_id=616\" width=\"1\" height=\"1\" style=\"border:none;\">\t\t\t\t\t<\/div>\n\t\t<div class=\"yyi-rinker-info\">\n\t\t\t<div class=\"yyi-rinker-title\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3394378&#038;p_id=54&#038;pc_id=54&#038;pl_id=616&#038;url=https%3A%2F%2Fsearch.rakuten.co.jp%2Fsearch%2Fmall%2FE%25E3%2583%25A1%25E3%2583%25BC%25E3%2583%25AB%25E3%2580%2580%25E3%2582%25BB%25E3%2582%25AD%25E3%2583%25A5%25E3%2583%25AA%25E3%2583%2586%25E3%2582%25A3%2F%3Ff%3D1%26grp%3Dproduct\" rel=\"nofollow\">\u3010\u4e2d\u53e4\u3011e\u30e1\u30fc\u30eb\uff06\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u500b\u4eba\u60c5\u5831\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5b88\u308b\u6cd5 \/ \u6728\u6751\u660c\u5e78<\/a><img loading=\"lazy\" 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