2006-12-11 10:17:01 UTC
some of our users now use outlook 2003. the smtp session
idle timeout default is 60 seconds for outlook 2003 and 2007.
we use qmail-scanner and clamav for virus scans. it would
take about 70 seconds to scan a 15 MB email. so the outlook
2003/2007 think smtp-timeout when clamav is working.
outlook disconnect and try send the mail again in a few minutes.
but qmail think the mail is ok, so it deliver the mail to user.
so outlook try to send the same mail again and again, and
the user receive the same mail again and again.
change outlook timeout fix this. but i wonder if we can let qmail-smtpd
sent out a "keep alive" message when qmail-queue is working?
thanks for help!!