* John Andersen
On Saturday 25 September 2004 11:46 am, Theo v. Werkhoven wrote:
Learn how to use Postfix to reject mail based on RBL, unknown hostnames etc. It is far more effective then trying to delete spam after you accepted it. See the postfix site for examples.
Actually, that proves to be largely in-effective for a lot of spam.
A great deal of spam gets thru RBLs because it takes several days for these things to trigger, and it also requires VERY careful selection of which RBL you use, because some of them will list mailservers of large ISP based on a SINGLE report.
The OP was on the right track, Spamassassin is by far the most effective and prudent way to go about this.
No, you need to use the two in tandem. I stop about seventy percent of uce/spam with RDLs and very nearly all of the rest with spamassassin and razor. In a two day period I had 331 rejected RBL and 76 by spamassassin 3.00 with no false pos's or neg's. I can provide the logs if necessary. The new spamassassin 3.0 is *much* better than 2.64, IMNSHO. -- Patrick Shanahan Registered Linux User #207535 http://wahoo.no-ip.org @ http://counter.li.org HOG # US1244711 Photo Album: http://wahoo.no-ip.org/photos