Joseph L. Casale <[EMAIL PROTECTED]> wrote: > >Does the mail you successfully send via telnet contain the exact same > >text/body as the one stuck in your queue? > > Yea, and upon further investigation, smaller sized mail gets through fine. > The destination MTA is Postfix as well with ASSP in front. In order to rule > out ASSP I stopped it and reconfigured master.cf to move smtpd to port 25. > This had no effect.
To clarify, destination MTA != relay, right? According to your logs, the problem (lost connection) occurs with the relay on port 24. > >You have not given much information about your setup as requested by the > >DEBUG_README, so one can only speculate. Do you know what MTA the relay > >is running? Have you recorded the SMTP conversation with something like > >tcpdump to see what happens right before the connection is lost? > > I don't know what the relay runs, but that shouldn't affect me. When I relay > back to the primary, it's done directly over port 24. I have enabled -v for > smtp and relay in master.cf so hopefully I can see what happens when an email > with an attachment is relayed. If this doesn't prove useful I will attempt > a tcpdump. Suit yourself. But using tcpdump to capture the packets is a trivial exercise; no harm in trying it. And make sure to do so on the email (it should be re-tried by Postfix if it's sitting in the queue) that is causing the problem. Just because other test emails get through does not rule out a problem. And yes, what software the relay MTA runs is relevant; especially if this software does not properly implement SMTP. -- Sahil Tandon <[EMAIL PROTECTED]>
