Hey, sorry we didn't respond earlier, just saw this post and the Anyvite reference. Our system is very basic right now and needs to be expanded on in the futur

Hey, sorry we didn't respond earlier, just saw this post and the Anyvite reference. Our system is very basic right now and needs to be expanded on in the future. We start by setting a return path on all emails we send. This directs any bounce messages to a single mailbox that we can then process. Parsing the bounce messages for us is fairly easy. We took some ideas from David Rusenko's post at: http://david.weebly.com/1/post/2008/06/startup-email-monitor-your-bounce-messages.html http://david.weebly.com/1/post/2008/06/startup-email-monitor... You seem to be trying to tie a bounce back to a specific outgoing message, which may or may not be the right thing to do depending on your application. For us, we only care about the email address it was sent to so we know not to send them anything else (if it's a hard bounce). Best of luck.