[gameprogrammer] Re: Offtopic: Antispam

On Thu, 02 Nov 2006 17:11:11 -0600, "Bob Pendleton" <bob@xxxxxxxxxxxxx>
said:
> On Thu, 2006-11-02 at 14:18 -0800, Kevin Jenkins wrote:
> > The amount of spam I've been getting lately makes it impossible to 
> > work.  The filter that comes with Thunderbird only catches about half 
> > because the spammers use images that show up even though I have images 
> > disabled.  Does anyone know of a good anti-spam system that works 
> > Thunderbird?
> 
> I use a combination of filtering at my mail server and spamassassin. It
> works pretty well, but is in no way perfect. I have read that this new
> wave of spam is being sent using botnets so most antispam systems fail
> to stop it. About the only thing that works are challenge response
> systems and white lists.

It's also easier to filter spam at the mailserver level if the filtering
system uses global information.  With a degree of intelligence, it can
tell when a message is sent identically to 40% of addresses and bounces
from 20% more non-existent and is therefore probably spam.

I think the spam filtering at www.fastmail.fm works like this. 
Certainly, I get very little spam at this account.

Dave.
-- 
  Dave Slutzkin
  Melbourne, Australia
  daveslutzkin@xxxxxxxxxxx


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