lmtp behaviour

Paul Fleming pfleming at siumed.edu
Sat Apr 5 14:43:52 EST 2003

More than likely you are getting into a locking problem with lmtpd
trying to lock the delivery database. In our install we ended up limiting
the number concurrent lmtp procs to about 10.. Sendmail will handle all
the queueuing once the lmtp process limit is reached.

On Sat, 5 Apr 2003 gshumway at cityextreme.com wrote:

> Hi,
> I'm running cyrus-imapd-2.1.12	with sendmail 8.12.9.  I have
> an issue where lmtpd seems to refuse connections. 
> This behaviour seems to occur when a large volume of mail is
> delivered to the box.  I notice that there is an lmtpd process
> fo each message that is being delivered so if i send a few
> hundred emails i get a few hundred ltmpd processes. Is this
> normal ? 
> I have specified FEATURE(local_lmtp) in sendmail.mc and have
> the following in my cyrus.conf file. 
> lmtpunix      cmd="lmtpd" listen="/var/imap/socket/lmtp" prefork=0
> The error in my maillog is:
> Apr  5 10:00:55 myserver sm-mta[58837]: h3500t9u058768:
> SYSERR(root): Could not connect to socket
> /var/imap/socket/lmtp: Connection refused by localhost
> Can anyone offer any advice ?
> Thanks. 

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