From: Jay Chandler (chandlerchapman.edu)
Date: Thu Dec 14 2006 - 16:57:42 CST

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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.

Anyone have any thoughts on this? My apologies if this is something
blindingly obvious.

My inbound server accepts the traffic, with the following restrictions set:

smtpd_recipient_restrictions = permit_mynetworks,
reject_non_fqdn_hostname, reject_non_fqdn_sender,
reject_non_fqdn_recipient, reject_unauth_destination,
reject_unauth_pipelining, reject_invalid_hostname, reject_rbl_client
psbl.surriel.com. reject_rbl_client cbl.abuseat.org, reject_rbl_client
sbl-xbl.spamhaus.org, reject_rbl_client
dnsbl.ahbl.org,reject_rhsbl_sender rhsbl.ahbl.org
smtpd_helo_required = yes
disable_vrfy_command = yes

--
Jay Chandler
Network Administrator, Chapman University
714.628.7249 / chandlerchapman.edu
Today's Excuse: Processes running slowly due to weak power supply

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