{"blog_url":"https://www.halu.dev/","type":"rich","author_url":"https://blog.hatena.ne.jp/hrt0kmt/","provider_name":"Hatena Blog","image_url":null,"provider_url":"https://hatena.blog","published":"2018-12-08 00:00:00","height":"190","version":"1.0","blog_title":"tail -f /dev/null","url":"https://www.halu.dev/entry/postfix/wrong_answer_on_rcpt_relay_access_denied","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.halu.dev%2Fentry%2Fpostfix%2Fwrong_answer_on_rcpt_relay_access_denied\" title=\"wrong answer on RCPT TO &quot;454 4.7.1 &lt;xxx@xxx.com&gt;: Relay access denied&quot; - tail -f /dev/null\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"hrt0kmt","title":"wrong answer on RCPT TO \"454 4.7.1 <xxx@xxx.com>: Relay access denied\"","categories":["postfix","docker"],"width":"100%","description":"\u6982\u8981 CentOS\u306e\u30b3\u30f3\u30c6\u30ca\u4e0a\u3067Postfix\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u301c\u8a2d\u5b9a\u3092\u884c\u3063\u3066\u3044\u308b\u3002 \u6570\u30f6\u6708\u3076\u308a\u306b\u30d3\u30eb\u30c9\u3057\u305f\u6240\u3001postfix\u304c\u8868\u984c\u306e\u30a8\u30e9\u30fc\u3092\u5410\u304d\u3001\u30e1\u30fc\u30eb\u304c\u9001\u3089\u308c\u306a\u304f\u306a\u3063\u305f\u3002 \u8a2d\u5b9a\u5468\u308a\u306f\u5909\u66f4\u305b\u305abuild\u3057\u305f\u70ba\u3001\u76f4\u63a5\u306e\u539f\u56e0\u306f\u4e0d\u660e\u3002\u30a4\u30f3\u30b9\u30c8\u30fc\u30ebversion\u3082\u56fa\u5b9a\u3057\u3066\u3044\u308b\u3002 \u539f\u56e0\u3068\u3057\u3066\u306f\u3001\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb mynetworks \u306e\u4e0d\u5099\u306a\u6a21\u69d8\u3002 Client\u5074IP Address\u30ec\u30f3\u30b8\u306e\u8ffd\u52a0\u4e0d\u8db3\u3002 Docker\u306e\u30c7\u30d5\u30a9\u30eb\u30c8IP\u30ec\u30f3\u30b8\u306f 172.17.0.0/16 \u3002 Dockerfile \u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u3066\u3044\u308b\uff08\u5b9f\u969b\u306b\u30d3\u30eb\u30c9\u3057\u3066\u3044\u308b\u3082\u306e\u3068\u306f\u591a\u5c11\u7570\u306a\u308b\uff09\u3002 FROM centos:latest ENV \\\u2026"}