From: Noel Jones (njonesmegan.vbhcs.org)
Date: Thu Dec 14 2006 - 17:44:57 CST

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At 04:57 PM 12/14/2006, Jay Chandler wrote:
>Greetings.
>
>Getting the following error on my outbound SMTP server from a few
>different servers-- the majority of my outbound traffic succeeds,
>but the ones that defer my messages seem to always be running Postfix.
>
>Dec 14 14:50:15 calais postfix/smtp[4867]: 93D982E4CB:
>to=<freebsd-questionsfreebsd.org>,
>relay=mx1.freebsd.org[69.147.83.52]:25, delay=1578,
>delays=1536/0.1/36/6.4, dsn=4.0.0, status=deferred (host
>mx1.freebsd.org[69.147.83.52] said: 450 Client host rejected: cannot
>find your hostname, [192.77.116.205] (in reply to RCPT TO command))
>
>
>I show reversals work correctly, so I'm stumped at this one.

They may work correctly for you, but apparently sometimes fail for
others. Check your DNS setup for dead or slow servers. Or maybe the
client you are talking to has slow/broken DNS, you can't do anything
about that. From the error message it's impossible to tell which end
has the problem.

--
Noel Jones

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