{"id":7700,"date":"2017-09-20T09:35:13","date_gmt":"2017-09-20T00:35:13","guid":{"rendered":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=7700"},"modified":"2017-09-20T09:35:13","modified_gmt":"2017-09-20T00:35:13","slug":"%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e5%88%87%e3%82%8a%e6%9b%bf%e3%81%88%e3%83%88%e3%83%a9%e3%83%96%e3%83%ab%e3%82%b7%e3%83%a5%e3%83%bc%e3%83%88","status":"publish","type":"post","link":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=7700","title":{"rendered":"\u30b5\u30fc\u30d0\u30fc\u5207\u308a\u66ff\u3048\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c8"},"content":{"rendered":"

Webサーバーはほとんどあっさり移転できましたが，いつも悩みの種はメール関係です．<\/p>\n

今回，GMailからのテストメールは受け付けましたが，iCloudからは受け付けません．ログを見ると，送信元のIPアドレスが逆引きできないと残っています．すぐさま，家内外^^; のWSからhostコマンドで調べると，やはり逆引きできません1<\/a><\/sup>DNSの一時的な問題だったようです．<\/span>．<\/p>\n

逆引きできないサーバーからのメールをリレーするかどうかについては賛否あるようですが，これまではsendmailのデフォルトである拒否設定にしてました．<\/p>\n

今回マシンが非力になったこともあるのでDNSの負荷を軽くする意味合いも含め，送り元サイトIPアドレスの逆引きをしばらく停止して様子を見ることにしました．<\/p>\n","protected":false},"excerpt":{"rendered":"

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