Milter-greylist

At 08:37 AM 2.3.2005 +0100, manu@... wrote:
>
>Hi
>
>According to this, we'll soon have to find a new idea for filtering spam
>efficiently:
>
>http://news.com.com/Experts+Zombie+trick+set+to+send+spam+sky-high/2100-
>7349_3-5560664.html?tag=nefd.top
>
>Summary: new spam engines don't send spam directly but rather use ISP
>SMTP servers. That will workaround greylisting, as the ISP SMTP server
>will retry sending.
>
>-- 
>Emmanuel Dreyfus
>http://hcpnet.free.fr/pubz
>manu@...
>

Emmanuel: On installing greylisting for the first time, it was also my
first thought that it would be good until the bad guys find a workaround. I
agree that GL has been a fantastic tool to-date and has lifted a great load
off of the other tools that eat big resources like spamassassin. The
present SA-3.0+ has constant complaints about hogging huge amounts of
memory -- causing some to revert back to 2.5x or 2.6x -- at the sake of
losing some effectiveness of the advances made by 3.0+.

It is also why I was hoping to see more expansion like the callback/mx IP
matching somehow, etc. In this war, no static anti-spam tool will last long
without change with counter-actions.

My $0.02 for the obvious....


Happy trails,
Jack L. Stone

System Admin
Sage-american