J C Lawrence writes:
On Tue, 25 Feb 2003 22:41:21 -0800 Anne P Mitchell <Anne> wrote: <list of good examples deletia>For those who think that the false positive situation isn't a problem...Which are precisely the reasons I don't and won't do SPAM filtering at the MTA. The potential cost of error is high, and almost all ability to supervise and correct is lost.
A lot of these problems are probably due to misconfigured tools. I am a firm believer of RBLs and we use that as the first line of defense against spam. If it has come to the point where someone is on one of the RBLs we use-we need a break. To that we have added SpamAssassin in tagging mode. The few false positives that it catches are simply tagged and can be whitelisted.