Looping Messages

I've seen this happen to our company before, with us on the receiving end of many duplicates of the same message.

In our case, I discovered that we had 4 or 5 different email clients using the same receiving email address in Internet Mail properties (@.com)because we had a few mailboxes setup with department names in addition to mailboxes for individuals. It was the multiple connections to the "departmentname" mailboxes that caused the "mailstorms", and when we switched to everyone setup one-to-one with their individual addresses, the problem never re-appeared. Perhaps this is causing the problem with your vendor's email, also.

I know how difficult it is to suggest to the receiving end that they are causing the problem, you get lots of indignation.

Good Luck

I think it is relatively safe to say it is not the fault of Ex5.5. If you have message tracking enabled, go to the user's mailbox, sent items, double click the original message, do file --> properties then select Message ID tab to get the unique ID.Use Exchange Admin to ensure it did go to the IMC once. The fault I would suggest is it was a large message and the Vendor is downloading their mails via POP3 ? I've seen Outl/2000 set for POP3/IMAP accounts time out before downloading a complet message, then loop hence the 30 or so copies of the same message. In these cases, a direct telnet on port 110 to remove the offending message works or increase timeout settings within outlook.

This question was closed by the author