We are seeing a lot of messages getting deferred in our sendmail logs
when deliver is executed. Basically, deliver is exitting with EX_TEMPFAIL.
Looking at the cyrus logs, I can correlate most of those failures to the
following message:
deliver: connect(/var/imap/socket/lmtp) failed: Permission denied
Does anyone know the nature of this problem? I am not as familiar with
UNIX file sockets as I am with TCP sockets. I assume, however, that the
listen queue (backlog queue) still works the same for either type of
socket, and since the master process is the one that is in charge and
listening on the various sockets, that maybe I am hitting a wall with
the backlog queue being too small if lots of connections are being made
to imap/pop/lmtp all at the same time. Am I off base here?
Anybody have any other ideas?
We are going to move from a UNIX file socket to a TCP socket for lmtp
and see if that helps. I will probably bump up the listen queue to see
if that helps as well.
Scott
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Scott W. Adkins http://www.cns.ohiou.edu/~sadkins/
UNIX Systems Engineer mailto:[EMAIL PROTECTED]
ICQ 7626282 Work (740)593-9478 Fax (740)593-1944
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CNS, HDL Center, Suite 301, Ohio University, Athens, OH 45701-2979
