Trying to resolve the spamhaus.org zones  to an A record will not work, it is a 
defensive measure against DoS attacks. So that test is a red herring and you 
can ignore that. Beyond that I have nothing to add, we don't use Vipre.


-----Original Message-----
From: S Powell [mailto:[email protected]] 
Sent: Friday, February 11, 2011 11:37 AM
To: NT System Admin Issues
Subject: RBL issues

After restarting exchange yesterday, and installing updates;  Vipre has been 
blocking everything. This it the message-->

"The error that the other server returned was: 550 550 5.7.1 Message rejected 
because of RBL policy (state 13)."

okay. we had the RBL in place before, and I didn't change anything on the 
server other than installing updates and restarting.

nslookup from the exchange server works for most domains HOWEVER spamhaus.org 
does not resolve, but spamcop does.

removing spamhaus from the RBL list and only using spamcop gives me the same 
result. everything is blocked.

With the RBL turned off, everything works.

thoughts on why this is? DNS seems to be working for everything else...




@THIS STATMENT IS VERIFIABLY INCORRECT

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