nanog mailing list archives

Re: SPAM Prevention/Blacklists


From: Scott Call <scall () devolution com>
Date: Wed, 3 Mar 2004 14:59:07 -0800 (PST)


I don't know what the prevailing attitude is, but it seems to me
that 451ing unknown senders  is a good way to get on the bad side of
sysadmins who have to deal with the backlog until your server decides to
accept them.

I would think if you're willing to spend other's resources on reducing
your spam load you would be willing to spend your own and implement SMTP
callback, SPF  or the like.

I tried implementing SPF which actually caught a fair # of forged senders
until I noticed that ticketmaster had invalid SPF records and we were
rejecting their emails.

-S


On Wed, 3 Mar 2004, Nathan Allen Stratton wrote:


On Wed, 3 Mar 2004, Brandon Shiers wrote:

Are there any other good lists out there that you folks have had good
experience with? Any that we might want to consider taking a look at?
Thanks,

Have you look at graylisting, temp failing mail with a sender/receiver/IP
you have not seen before?

<>
Nathan Stratton                              CTO, Co-Founder
nathan at robotics.net                       BroadVoice, Inc.
http://www.robotics.net                      http://www.broadvoice.com



!DSPAM:40465d92185491208025388!




-- 
Scott Call      Router Geek, ATGi, home of $6.95 Prime Rib
I make the world a better place, I boycott Wal-Mart
VoIP incoming: +1 360-382-1814


Current thread: