[Greylist-users] greylisting implementation

[Ricardo Kirkner]

Hi people:

I am about to deploy a big installation with greylisting and sendmail 
(probably). I just wanted to know what greylisting implementation do you 
recommend me to use. I ask this because I think (maybe I am wrong) that 
the greylisting implementation made by Evan Harris is more focused in 
explaining the mechanism than in being functionality complete.

So far I have seen his implementation (relaydelay) and the 
greylist-milter (although I have not used it yet).

Any suggestions are appreciated.

With regards

Ricardo Kirkner

PD: if you recommend me to use the relaydelay implementation, should I 
use Sendmail::Milter or PMilter? Can I use PostgreSQL instead of MySQL?