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"reject_unknown_reverse_client_hostname" bouncing mail when name server is down
From: Jordan Russell (jr-list-2006
quo.to)
Date: Wed Aug 23 2006 - 19:47:11 CDT
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(Postfix 2.3.2, Red Hat Enterprise Linux 4)
In Postfix I'm using:
smtpd_recipient_restrictions = .. reject_unknown_reverse_client_hostname
unknown_client_reject_code = 554
BIND runs on the same machine. /etc/resolv.conf is set as follows:
nameserver 127.0.0.1
I have found that when I stop the "named" daemon, all incoming mail is
rejected with:
554 5.7.1 Client host rejected: cannot find your reverse hostname
Yet the manual states:
"The reply is always 450 in case the address->name lookup failed due to
a temporary problem."
Does an unreachable name server not count as a "temporary problem"?
Thanks,
Jordan Russell
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