> > If you are fighting spam then you should implement the latest > spamassassin which utilizes surbl lists. Reports are that this works > very well. > > However to keep from having to process all those spam messages you > should also implement greylisting. That alone will reduce spam by over > 90% and you won't have to process all those spam messages. > milter-greylist is a very good implementation that I have used with > sendmail. Easy to install and has been trouble free. > > Greylisting does not even incur the network overhead of using rbls, it > issues a temporary reject on the message. A real MTA will retry after a > few minutes (sometimes longer) but the spam zombies won't retry. As a > result most spam gets dropped before you even receive the message. > > > -- > Scot L. Harris > webid@xxxxxxxxxx > I do have spamassassin installed, but I'd like to block most spams before processing them. Could you please explain milter-greylist little more? Any document or link is greately appreciated! Hongwei
