Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations strongm on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
-
RELAY?? But I fixed it already!..now what?
IMWOODY - - "If someone sends and e-mail formatted like this name%otherdomain.com@yourdomain.com to your Exchange server, it will accept it and generate a NDR after failing a directory lookup." You are correct! "Microsoft says this is acceptable as it does not forward the...- alanmalm
- Post #66
- Forum: Microsoft: Exchange
-
RELAY?? But I fixed it already!..now what?
The <> messages are typically NDR or (Non Delivery Report) messages from the Postmaster. Most often, this is what is called NDR spam which is a loophole in the RFC. The fix in Exchange 5.5 and Exchange 2000 is a third party utility such as Praetor from cmsconnect.com or Mailsweeper. The best...- alanmalm
- Post #65
- Forum: Microsoft: Exchange
-
RELAY?? But I fixed it already!..now what?
The Bluestell messages are authenticated spam. Someone has compromised your systems and have one of your usernames and passwords. That is how they are getting in. In Exchange 5.5, if you go to Exchange Admin - Internet Mail Service - Routing tab - Make sure it is set to "Reroute" -...- alanmalm
- Post #41
- Forum: Microsoft: Exchange
