Re: DNS blacklists

[Ben Williams <Ben.Williams () DAVENPORT EDU>]

We utilize zen.spamhaus and b.barracuda. The only complaints we have
received are from users being blocked when sending mail from home
(POP/IMAP users). Where necessary we have added exceptions for them.
When we added the barracuda list our top spam recipients saw
approximately a 50% decrease in quarantined spam. While that does not
translate to a 50% reduction in spam for everyone, it certainly does
lighten the load on our spam filter system.

Ben Williams

> > > "Tupker, Mike" <mtupker () MTMERCY EDU> 5/18/2009 12:38 PM >>>

Hi,


I was just curious what other campus’ are using in terms of DNS
blacklist when it comes to email? They are very handy but recently a few
of them have been the source of some complaints from our users.
Currently we are using:

Rbl-xbl.Spamhaus
psbl.surriel.com
cbl.abuseat.org
bl.spamcop.net
dnsbl.njabl.org
Barracudacentral – by default in our barracuda device

I know we are probably using more lists than is necessary, but I’m sure
you all know how cranky people can get if they find a single spam
message in their inbox.

Mike Tupker
Systems Administrator
Mount Mercy College