>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. >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. I'll need to take down the primary and send some email as tests so I need to wait for the weekend for this. Thanks! jlc
