Lmtp refusing connection all of a sudden

James A. Pattie james at pcxperience.com
Mon Jan 12 13:02:02 EST 2004

Hash: SHA1

Ramprasad A Padmanabhan wrote:
| I have a cyrus 2.1.12 server running on redhat 7.2 with around 1500 users
| Now all of a sudden lmtp is refusing connections even though cyrus is
| running and the sock /var/imap/socket/lmtp is created
| Now How do I debug this error , Can I enable some loging somewhere
| I cant see anything in my messages file
| The users are able to login to the server using imap /POP but no new
| mails are delivered . Can someone please help me out.

If you are running sendmail, I've just gotten a work around created for this
problem, but don't know why the problem is occuring.

Check hoststat and see if your localhost entry is reporting an error, like
Connection Deferred, etc.

What I've had to do is kill all the sendmail instances trying to deliver to
localhost, restart sendmail, restart cyrus, purgestat (clear sendmails database
of delivery success/failure).  At that point, delivery will start up again.

I've also set the hoststatus timeout to be 5 minutes instead of the default
30minutes, in sendmail.mc/cf but it doesn't seem to help.

The only other thing that is in the mix is I'm running MailScanner to process
e-mails for spam and virii, but sendmail and cyrus are all local, so I don't
know why cyrus and sendmail think the ltmp socket isn't available.

There are instances of the lmtpd running, but only because I told it to prefork.
~ Upping the number of connections it will accept also hasn't made a difference.

- --
James A. Pattie
james at pcxperience.com

Linux   SysAdmin / Systems Programmer
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