Matus UHLAR - fantomas wrote:
- blocking at MTA by RBL or other techniques (such as graylisting)
is efficient and effective, but deprives SpamAssassin of spam samples,
so if your resources permit, it is better to let SpamAssassin deal
with all RBLs.
I don't think so. We get "enough" of spam even if using many RBLs at SMTP
level.
Plus note that characteristics of spam that got through RBL "sieve"
*might* be different than characteristics of the spam that didn't.
If so - I have not done any tests, so I have no idea really - then Bayes
would be at least partially mistrained.
Having said that, I do have exceptions to my sender-verify and RBL rules
for spam traps. :-) Now, getting something useful done with that stuff
is another story.
Regards,
Marcin Krol
