Antigen and Rejected Mailhosts

[Guest matthew_h]

I am running Antigen for Exchange on a Exchange 2003 machine. My Outbound

Mail Queue constantly has messages from my Postmaster that are in RETRY state

trying to send NDRs (I guess) to what I assume are "spoofing" spammers. For

these, the Additional Queue Information shows "the remote server did not

respond to the communication request" which indicates the spam came from a

spoofed or illegitimate source, right?

 

I have added many of these spoofing spammers, the domains and or IPs, to my

Rejected Mailhost lists but I continue to see my Postmaster is trying to send

NDRs to the same blocked Rejected Mailhost.

 

It seems like if you block a domain\mailhost that your server would never

try to send a NDR reply to the illegitimate source. Does that all makes sense?

 

Any ideas are much appreciated...