Hello,
This is a strange one. I have Exchange 2013 and outlook 2013 and I have been using the content filter agent as a layer of spam protection since we were on 2008 and 2007. I redirect all my spam to a quarantine mailbox and examine it daily for false positives. When I find one I click "Send Again" from the message in the quarantine mailbox to forward it on to the original sender. Normally Oulook automatically populates it with the original recipient. Today I noticed one that, for some reason, inserted "groupwise-" in the front of the address(so for example "groupwise-username@domain.com:3:1") This concerns me as there is no such address and I have no idea where it is pulling this address from. I don't use groupwise software. The quarantine mailbox has info in a postmaster and abuse reporting email. It shows the address correctly as "username@domain.com." Only when you click "Send Again" does it insert this groupwise address. Any ideas why?
This has only happened on one email so far.
Thanks.