Hi all,

Is/has anyone here used rhost_check in conjunction rblsmtpd and QMT to do
rDNS lookups on remote hosts for spam filtering?

http://www.zentus.com/rhost-check.html

I've always compiled this useful tool into my QMR installs in the past to
do non-paranoid (-p) tcpserver lookups of the rDNS status of connecting
hosts. I always place this lookup immediately prior to all other checks to
verify that the connecting server at least HAS some sort of PTR record. It
cuts off spam immediately without any other conditions first and avoids
hammering the RBLs unnecessarily.

It's worked fine with RH9 and EL3. Was wondering if anyone has compiled
and installed it on more recent versions of EL--specifically CentOS
5.3-x64. Does the code works with more recent linux releases and x64
versions?

Also, in case I'm missing something here and wasting my time, the current
CHKUSER isn't doing any rDNS PTR lookups for connection
verification/rejection, is it?

Thanks!
-- 
Tim Pleiman
Bravo Systems Technologies
"Advanced Open Source Solutions for Business"
Chicago, IL USA


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