On Sep 19, 2007, at 12:27 PM, Martin Zobel-Helas wrote:
Hi, On Tue Sep 18, 2007 at 08:36:30 +0200, Peter Teunissen wrote:For directly blocking mail however, you'd be better of using thezen.spamhaus.org combined blocklist wich is very effective and has almost no false positives. I don't know how they do it, but it catches 90% of myspam on it's own. More info can be found on http://www.spamhaus.orgThe proiblem of using RBLs on SMTP-time is that the mail is gone, nevertheless it was UCE or not.
That's true, although the sending server will generate a bounce back to the sender. So the mail doesn't disappear down a black hole, at least.