
一部のドメインで TLS SNI が利用できない?
去年(2024年)の4月くらいに postfix/dovecot を TLS SNI に対応するように設定したのだが、あるドメインで送信エラーがでることに気づいた。(テスト仕様書?なんのことかな?)エラー内容当サイトのメールサーバでは二つの...
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