Recently we have being having a few problems with external organisations trying to send us very large attachments some up to 28mb+!! Our Exchange server is rejecting these and sending a failure report back to the sender. The problem for us is that the users in our network are unaware that an email has been attempted to be sent to them. We have another mechanism in place for transferring very large files with clients (leapfile).
What i really want to know is is it possible to configure our Microsoft Exchange Server 2003 to send a failure report to the intended recipient as well as the sender.