Mail disappears trying to send

[Eksistenz]

OK this is weird. We run Exchange 2003 Server with Outlook 2000. One user tried to send an email containing four jpg files as attachments. When he clicked send, the email disappeared: it didn't reach the recipient, there was no error or NDR and the message isn't in his sent items, outbox or deleted items.

We tried both internal & external recipients, with the same result. We then zipped up the files and re-attached them, and the email sent without problem.

Does anyone have any idea why this happened?

 

[dayron]

Sounds like your anti-virus solution for Exchange is set to not allow .JPG files to be sent. By zipping them they become a .ZIP file which can be sent. THe same thing happens when my users try to email their buddies .EXE files and otherpotentially threatening content. HOwever I do let .JPG through. So, anyway... sounds like .JPG is blocked at the AV level. Are you using Symantec AV for Exchange?