dovecot 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。エラー内容当サイトのメールサーバでは二つのドメインのメールを取り扱っているが、一方のドメイ...
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