postgrey question

[Chad Leigh -- Shire.Net LLC]

On Jun 1, 2005, at 8:07 AM, Bart Silverstrim wrote:

> I've been looking into ways of improving our spam filtering.   
> Currently I'm running postfix with amavisd-new (spamassassin and  
> clamav), and saw an article on greylisting using postgrey.  Turns  
> out there's a port for it already in FreeBSD.


I don't run postifx and the thing I am about to mention I have not  
tried yet, but you may want to explore modifying your greylisting to  
be based on spamassassin results.

I use exim as the mta and there is a thing called sa-exim that lets  
you run spamassassin at SMTP time so that you can reject mail if you  
want before you actually are finished receiving it.  The author of sa- 
exim has modified it to do greylisting based on spamassassing scores  
generated at smtp time, so that you only greylist mail that is  
thought to be spam and do not inconvenience your regular users.

Can you do spamassassin at smtp time with postfix?

Chad