nanog mailing list archives

Re: sorbs.net


From: "Christopher L. Morrow" <christopher.morrow () mci com>
Date: Mon, 21 Mar 2005 16:11:12 +0000 (GMT)



On Mon, 21 Mar 2005, Jason Slagle wrote:


Lady was running exchange.  She had the Symantec virus/spam/crap filter
for it installed..  All email to her was bouncing with a 550 spam site
deny.

We jerked around with it for quite some time before we realized that one
of the dnsbl's that the Symantec product was using was returning positive
for ALL queries.

This is the risk you run - this product either had it on by default, or it
was in a list of options to turn on.  End users don't know what it is, and

actually the risk being run is 'not understanding what you are doing' :(
mark this admin of mail systems up with the others who blithely use ANY
RBL without knowing how/what/where/when it gets made.

-Chris


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