Joseph Thibeault: > We use postfix as a mail queue / sending service in one of our > applications. This application generates emails with PDF attachments. Some > of the emails with PDFs get sent fine, but others seem to cause a "timeout > after DATA" error. > > Through reading online, I've seen answers such as adjusting the MTU size on > the network interface, etc. None of these solutions have worked. Has anyone > had this happen, do you have any suggestions to fix it?
To diagnose the problem, make a packet recording, and have it reviewed by an expert who can use that to determine if the problem is with the sender, receiver, or in-between. That's more effective than making random black-box changes. http://www.postfix.org/DEBUG_README.html Wietse
