メールを送信すると拒否メッセージ "TLS handshake failed" が記録される

Solution Unverified - Updated -

Issue

  • メールが特定のドメインに拒否されます。

    Sep 18 17:47:45 XX sendmail[4025]: ruleset=tls_server, arg1=SOFTWARE, relay=mail.example.com, reject=403 4.7.0 TLS handshake failed.  
Sep 18 17:47:45 XX sendmail[4025]: p8F8QUlr004450: to=<test@mail.example.com>, delay=3+00:21:15, xdelay=00:29:09, mailer=esmtp, pri=10833627, relay=mail.example.com.[xx.xx.xx.xx], dsn=4.0.0,  stat=Deferred:403 4.7.0 TLS handshake failed.

Environment

  • Red Hat Enterprise Linux 3

  • Red Hat Enterprise Linux 4

  • Red Hat Enterprise Linux 5

  • Red Hat Enterprise Linux 6

  • Sendmail

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