[lug] Stopping the New Generation of Spam

[Jeremy Hinegardner]

On Sun, Dec 03, 2006 at 12:19:02PM -0700, Bill Thoen wrote:
> Over the last 2-3 months I've been getting a *lot* more spam than ever
> before and Spamassassin doesn't seem to be reacting fast enough or
> effectively enough to deal with it. In particular, it doesn't seem to be
> able to block these messages filled with random snippets of english
> text and/or those where the message is embedded as an image. It also looks
> like some of these spams are coming form large networks of compromised
> machines (same message comes from many different unrelated IPs) so blocking
> by IP is less effective. I used to get about 250 spams a day, but now it's
> up to 350-500 a day, and it's increasing.
> 
> How are people dealing with this new onslaught? What sort of filtering or
> tools work these days? If this keeps up it will eventually overwhelm my
> little Linux server and become sort of indistinguishable from a Denial of
> Service attack!

I've been using greylisting for several years now it has been working
wonderfully.  Actually, All I'm using is greylisting, and the amount of
spam that I get is just a few pieces a day from hotmail accounts.

http://www.greylisting.org/
http://isg.ee.ethz.ch/tools/postgrey/

enjoy,

-jeremy


-- 
========================================================================
 Jeremy Hinegardner                              jeremy at hinegardner.org