{"id":7271,"date":"2023-04-26T16:54:39","date_gmt":"2023-04-26T07:54:39","guid":{"rendered":"https:\/\/www.lancard.com\/blog\/?p=7271"},"modified":"2025-03-12T11:23:57","modified_gmt":"2025-03-12T02:23:57","slug":"dkim-postfix","status":"publish","type":"post","link":"https:\/\/www.lancard.com\/blog\/2023\/04\/26\/dkim-postfix\/","title":{"rendered":"DKIM\u3092\u30c6\u30b9\u30c8\u74b0\u5883\u306ePostfix\u306b\u7d44\u307f\u8fbc\u3080"},"content":{"rendered":"\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<a rel=\"noreferrer noopener\" href=\"https:\/\/www.lancard.com\/blog\/2023\/04\/20\/spf-postfix\/\" target=\"_blank\">\u524d\u56de<\/a>\u306fSPF\u3092\u7d44\u307f\u8fbc\u3093\u3060\u306e\u3067\u3001\u4eca\u56de\u306fDKIM\u3092\u7d44\u307f\u8fbc\u3093\u3067\u307f\u307e\u3059\u3002<br>SPF\u3068\u9055\u3063\u3066DKIM\u3067\u30ed\u30fc\u30ab\u30eb\u304b\u3089\u51fa\u3057\u305f\u30e1\u30fc\u30eb\u306eVerify\u3092\u8272\u3005\u3068\u8a66\u3057\u307e\u3057\u305f\u304c\u3001\u3084\u3063\u3066\u304f\u308c\u306a\u304b\u3063\u305f\u306e\u3067\u7d50\u5c40\u4e8c\u53f0\u306e\u30b5\u30fc\u30d0\u69cb\u6210\u306b\u3057\u307e\u3057\u305f\u3002<br>\u30b5\u30fc\u30d0\uff11\u3092virtual.localdomain, \u30b5\u30fc\u30d0\uff12\u3092virtual2.localdomain\u3068\u3057\u3066\u4e21\u65b9\u306b\u8a2d\u5b9a\u3092\u3057\u3066\u884c\u304d\u307e\u3059\u3002\n<\/div>\n<\/div>\n\n\n\n\n<!--more-->\n\n\n\n\n<h2 class=\"wp-block-heading\">OpenDKIM<\/h2>\n\n\n\n\n\u307e\u305a\u306f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\uff08EPEL\u306f\u65e2\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u6e08\u306e\u524d\u63d0\u3067\u3059\uff09\u3002\n\n\n\n\n<pre class=\"wp-block-code\"><code>dnf install opendkim opendkim-tools --enablerepo=crb<\/code><\/pre>\n\n\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n\u6b21\u306b\u30c9\u30e1\u30a4\u30f3\u306e\u79d8\u5bc6\u9375\u30fb\u516c\u958b\u9375\u306e\u4f5c\u6210\u3002\u30aa\u30d7\u30b7\u30e7\u30f3\u306e-s\u306f\u30bb\u30ec\u30af\u30bf\u3067\u3059\u304c\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306edefault\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<br><em>\u203b\u30b5\u30fc\u30d0\uff12\u3067\u306f\u3001virtual.localdomain\u3092virtual2.localdomain\u306b\u3057\u307e\u3059\u3002<\/em>\n<\/div>\n<\/div>\n\n\n\n\n\n<pre class=\"wp-block-code\"><code>mkdir \/etc\/opendkim\/keys\/virtual.localdomain\nopendkim-genkey -D \/etc\/opendkim\/keys\/virtual.localdomain\/ -d virtual.localdomain -s default\nchown -R opendkim.opendkim \/etc\/opendkim\/keys\/virtual.localdomain\/<\/code><\/pre>\n\n\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n\u6210\u529f\u3059\u308b\u3068\u3001default.txt\u3068default.private\u30d5\u30a1\u30a4\u30eb\u304c\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002\n<\/div>\n<\/div>\n\n\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n\u305d\u3057\u3066\u3001opendkim\u306e\u8a2d\u5b9a\u3002<br>\u305d\u308c\u305e\u308c\u30b5\u30f3\u30d7\u30eb\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u305d\u308c\u3092\u53c2\u8003\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u304d\u307e\u3059\u3002<br><em>\u203b\u30b5\u30fc\u30d0\uff12\u3067\u306f\u3001virtual.localdomain\u3092virtual2.localdomain\u306b\u3057\u307e\u3059\u3002<\/em>\n<\/div>\n<\/div>\n\n\n\n\n\n<h4 class=\"wp-block-heading\">\/etc\/opendkim.conf<\/h4>\n\n\n\n\n\n<pre class=\"wp-block-code\"><code>Mode    sv\n# \u30b3\u30e1\u30f3\u30c8\u5316\n#KeyFile \/etc\/opendkim\/keys\/default.private\n# \u4ee5\u4e0b\u30b3\u30e1\u30f3\u30c8\u89e3\u9664\nKeyTable        refile:\/etc\/opendkim\/KeyTable\nSigningTable   refile:\/etc\/opendkim\/SigningTable\nExternalIgnoreList refile:\/etc\/opendkim\/TrustedHosts\nInternalHosts  refile:\/etc\/opendkim\/TrustedHosts<\/code><\/pre>\n\n\n\n\n\n<h4 class=\"wp-block-heading\">\/etc\/opendkim\/KeyTable<\/h4>\n\n\n\n\n\n<pre class=\"wp-block-code\"><code>default._domainkey.virtual.localdomain  virtual.localdomain:default:\/etc\/opendkim\/keys\/virtual.localdomain\/default.private<\/code><\/pre>\n\n\n\n\n\n<h4 class=\"wp-block-heading\">\/etc\/opendkim\/SigningTable<\/h4>\n\n\n\n\n\n<pre class=\"wp-block-code\"><code>*@virtual.localdomain   default._domainkey.virtual.localdomain<\/code><\/pre>\n\n\n\n\n\u8a2d\u5b9a\u3057\u305f\u3089\u8d77\u52d5\u3057\u307e\u3059\u3002\n\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl enable opendkim --now<\/code><\/pre>\n\n\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Dnsmasq<\/h2>\n\n\n\n\n\u524d\u56deSPF\u3067\u3084\u3063\u305f\u3088\u3046\u306b\u81ea\u30c9\u30e1\u30a4\u30f3\u3092dig\u3067\u5f15\u3051\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304d\u307e\u3059\u3002<br>\u203b\u76f4\u63a5\/etc\/resolv.conf\u3092\u66f8\u304d\u63db\u3048\u308b\u3068\u518d\u8d77\u52d5\u3067\u623b\u3063\u3066\u3057\u307e\u3046\u306e\u3067\u3001\u518d\u8d77\u52d5\u5f8c\u3082\u5229\u7528\u3059\u308b\u6642\u306fnmtui\u7b49\u3067DNS\u3092127.0.0.1\u306b\u6307\u5b9a\u3057\u3066\u304a\u304d\u307e\u3059\u3002\n\n\n\n\n<h4 class=\"wp-block-heading\">\/etc\/dnsmasq.conf<\/h4>\n\n\n\n\n\n<pre class=\"wp-block-code\"><code>selfmx<\/code><\/pre>\n\n\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n\u6b21\u306bDKIM\u306e\u516c\u958b\u9375\u3092TXT\u30ec\u30b3\u30fc\u30c9\u306b\u767b\u9332\u3057\u307e\u3059\u304c\u3001\/etc\/opendkim\/keys\/virtual.localdomain\/default.txt\u306e&#8221;v=DKIM1; k=rsa; p=[\u516c\u958b\u9375]&#8221;\u306f\u6539\u884c\u3055\u308c\u5404\u884c\u3067\u30af\u30a9\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u3053\u308c\u3092\u4e00\u3064\u306a\u304e\u306b\u3057\u3066txt-record\u3078\u8a18\u8f09\u3057\u307e\u3059\u3002\u5f62\u5f0f\u3068\u3057\u3066\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\n<\/div>\n<\/div>\n\n\n\n\n\n<pre class=\"wp-block-code\"><code>txt-record=&#91;selector]._domainkey.&#91;domain],\"v=DKIM1; k=rsa; p=&#91;\u516c\u958b\u9375]\"<\/code><\/pre>\n\n\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n\u3053\u3053\u3067\u76f8\u624b\u5074\u306e\u30c9\u30e1\u30a4\u30f3\u306e\u516c\u958b\u9375\u3082\u5f15\u3051\u308b\u5fc5\u8981\u304c\u6709\u308b\u306e\u3067\u3059\u304c\u3001\u30aa\u30fc\u30d7\u30f3\u30ea\u30be\u30eb\u30d0\u3068\u304b\u9762\u5012\u306a\u306e\u3067\u4e21\u30b5\u30fc\u30d0\u306bvirtual.localdomain\u3068virtual2.localdomain\u306e\u516c\u958b\u9375\u3092\u767b\u9332\u3057\u307e\u3059\u3002<br>\u3053\u306e\u8fba\u306f\u4ed6\u306b\u3082\u3084\u308a\u65b9\u304c\u6709\u308b\u3068\u601d\u3044\u307e\u3059\u3002\n<\/div>\n<\/div>\n\n\n\n\n\n<h4 class=\"wp-block-heading\">\/etc\/dnsmasq.d\/dkim.conf<\/h4>\n\n\n\n\n\n<pre class=\"wp-block-code\"><code># DKIM virtual.localdomain\ntxt-record=default._domainkey.virtual.localdomain,\"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCzepAxoQwaI4e76FwYbg0Evk7QUqskLe4NHcb9+pZ9QC+AQYznH3ZAwusF2U0nzZTiPlnjQkTcoy+orOUEBLkmXoytiSKS29X276IqfISRO1FVTDQ9jyGky3nEr\/Qvhq6KstWzA5\/E26hS2DTflJ+oUsILAHyTx3mZbaxvn64x1wIDAQAB\"\ntxt-record=_adsp._domainkey.virtual.localdomain,\"dkim=unknown\"\n# DKIM virtual2.localdomain\ntxt-record=default._domainkey.virtual2.localdomain,\"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD1bkW3yL47lkmEmLawk3vESjn\/twEk\/eJxU1D4rfwDXHyhS+cjKG1\/KixWkJ3dr1bLUTTEap7kPMgMv5sKzrP9uVNfX62uGmNk5xy6Q8sooOv3IPdNr4Q1ErkmnarwkoYwV9UPG2xuQEVNAsyi0d4uBvSjITs+Itt46osPB7eKKwIDAQAB\"\ntxt-record=_adsp._domainkey.virtual2.localdomain,\"dkim=unknown\"<\/code><\/pre>\n\n\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n\u4e21\u30b5\u30fc\u30d0\u306edefault.txt\u306e\u516c\u958b\u9375\u306e\u5024\u3092\u305d\u308c\u305e\u308c\u767b\u9332\u3057\u307e\u3059\u3002<br>adsp\u306b\u3064\u3044\u3066\u306f\u3001\u53d7\u4fe1\u5074\u306b\u3068\u308a\u3042\u3048\u305a\u5230\u9054\u3055\u305b\u308b\u305f\u3081\u306b\u3001unknown\u306b\u3057\u3066\u304a\u304d\u307e\u3059\u3002\n<\/div>\n<\/div>\n\n\n\n\n\n<h4 class=\"wp-block-heading\">\/etc\/hosts<\/h4>\n\n\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\nvirtual.localdomain\u306ehosts\u306b\u306fvirtual2.localdomain\u306e\u30ea\u30e2\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3092\u3001<br>virtual2.localdomain\u306ehosts\u306b\u306fvirtual.localdomain\u306e\u30ea\u30e2\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3092<br>\u8a18\u8f09\u3057\u3066\u30c9\u30e1\u30a4\u30f3\u540d\u3067\u76f8\u624b\u306b\u5230\u9054\u51fa\u6765\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304d\u307e\u3059\u3002\n<\/div>\n<\/div>\n\n\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\nvirtual.localdomain(192.168.10.79)\u306e\/etc\/hosts\u306f\u3053\u306e\u3088\u3046\u306a\u611f\u3058\u3002\n\n\n\n<pre class=\"wp-block-code\"><code>127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4 virtual.localdomain\n::1         localhost localhost.localdomain localhost6 localhost6.localdomain6 virtual.localdomain\n192.168.10.117  virtual2.localdomain<\/code><\/pre>\n\n\n\nvirtual2.localdomain(192.168.10.117)\u306e\/etc\/hosts\u306f\u3053\u306e\u3088\u3046\u306a\u611f\u3058\u306b\u306a\u308a\u307e\u3059\u3002\n<\/div>\n<\/div>\n\n\n\n\n\n<pre class=\"wp-block-code\"><code>127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4 virtual2.localdomain\n::1         localhost localhost.localdomain localhost6 localhost6.localdomain6 virtual2.localdomain\n192.168.10.79   virtual.localdomain<\/code><\/pre>\n\n\n\n\n\u518d\u8d77\u52d5\u3057\u3066\u3001\u30ec\u30b3\u30fc\u30c9\u304c\u5f15\u3051\u308b\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002\n\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl restart dnsmasq\ndig virtual.localdomain\ndig virtual2.localdomain\ndig TXT default._domainkey.virtual.localdomain \ndig TXT _adsp._domainkey.virtual.localdomain\ndig TXT default._domainkey.virtual2.localdomain \ndig TXT _adsp._domainkey.virtual2.localdomain<\/code><\/pre>\n\n\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Postfix<\/h2>\n\n\n\n\n\u3082\u3046\u4e00\u65b9\u304b\u3089\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u3089\u308c\u308b\u3088\u3046inet_interfaces\u3092all\u306b\u3057\u3066\u3001milter\u3078opendkim\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\n\n\n\n\n<h4 class=\"wp-block-heading\">\/etc\/postfix\/main.cf<\/h4>\n\n\n\n\n\n<pre class=\"wp-block-code\"><code>inet_interfaces = all\n\n# DKIM\u8a2d\u5b9a\nsmtpd_milters = inet:127.0.0.1:8891\nnon_smtpd_milters = inet:127.0.0.1:8891\nmilter_default_action = accept<\/code><\/pre>\n\n\n\n\n\u7d42\u308f\u3063\u305f\u3089\u30ea\u30c3\u30b9\u30f3\u3059\u308b\u30a2\u30c9\u30ec\u30b9\u306e\u66f4\u65b0\u306e\u305f\u3081\u3001\u30ea\u30b9\u30bf\u30fc\u30c8\u3092\u3002\n\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl restart postfix<\/code><\/pre>\n\n\n\n\nfirewall\u3082smtp\u30dd\u30fc\u30c8\u3092\u958b\u3051\u3066\u304a\u304d\u307e\u3059\u3002\n\n\n\n\n<pre class=\"wp-block-code\"><code>firewall-cmd --add-service=smtp\nfirewall-cmd --add-service=smtp --permanent<\/code><\/pre>\n\n\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\nRoundCube\u7b49\u3067\u304a\u4e92\u3044\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u30e1\u30fc\u30eb\u3092\u9001\u3063\u3066\u3001Authentication-Results\u306bdkim=pass\u3068\u306a\u308c\u3070\u5b8c\u4e86\u3067\u3059\u3002<br>\u81ea\u30c9\u30e1\u30a4\u30f3\u5b9b\u306b\u9001\u3063\u3066\u3082\uff08Signature\u306f\u8ffd\u52a0\u3055\u308c\u3066\u3082\uff09\u3001Verify\u306f\u3057\u3066\u304f\u308c\u307e\u305b\u3093\u3002\n<\/div>\n<\/div>\n\n\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\nvirtual.localdomain\u3078\u9001\u3063\u305f\u30e1\u30fc\u30eb\n<\/div>\n<\/div>\n\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.lancard.com\/blog\/wp-content\/uploads\/2023\/04\/image-12.png\"><img loading=\"lazy\" decoding=\"async\" width=\"602\" height=\"508\" src=\"https:\/\/www.lancard.com\/blog\/wp-content\/uploads\/2023\/04\/image-12-602x508.png\" alt=\"\" class=\"wp-image-7302\" srcset=\"https:\/\/www.lancard.com\/blog\/wp-content\/uploads\/2023\/04\/image-12-602x508.png 602w, https:\/\/www.lancard.com\/blog\/wp-content\/uploads\/2023\/04\/image-12-400x338.png 400w, https:\/\/www.lancard.com\/blog\/wp-content\/uploads\/2023\/04\/image-12.png 604w\" sizes=\"auto, (max-width: 602px) 100vw, 602px\" \/><\/a><\/figure>\n\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\nvirtual2.localdomain\u3078\u9001\u3063\u305f\u30e1\u30fc\u30eb\n<\/div>\n<\/div>\n\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.lancard.com\/blog\/wp-content\/uploads\/2023\/04\/image-14.png\"><img loading=\"lazy\" decoding=\"async\" width=\"602\" height=\"513\" src=\"https:\/\/www.lancard.com\/blog\/wp-content\/uploads\/2023\/04\/image-14-602x513.png\" alt=\"\" class=\"wp-image-7304\" srcset=\"https:\/\/www.lancard.com\/blog\/wp-content\/uploads\/2023\/04\/image-14-602x513.png 602w, https:\/\/www.lancard.com\/blog\/wp-content\/uploads\/2023\/04\/image-14-400x341.png 400w, https:\/\/www.lancard.com\/blog\/wp-content\/uploads\/2023\/04\/image-14.png 606w\" sizes=\"auto, (max-width: 602px) 100vw, 602px\" \/><\/a><\/figure>\n<a class=\"synved-social-button synved-social-button-share synved-social-size-24 synved-social-resolution-single synved-social-provider-facebook nolightbox\" data-provider=\"facebook\" target=\"_blank\" rel=\"nofollow\" title=\"Share on Facebook\" 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