You get their filtering power for free and don't have to deal with the
hardware, if you don't particularly like it.
http://www.barracudacentral.org/
That's not completely true; the Barracuda appliance uses both
block-lists and content-based filtering. The block-list is free for
anyone who wants it, but the content-based filtering is not.
However, the block-list *is* now one of the best ones out there. They
had a rocky start, but in the last year they have consistently
outperformed most of the other no-charge block-lists both in terms of
catch rate and false positive rate.
Spamhaus has long been one of my favorites for its performance, but I am
now seeing Barracuda beat them each month in catch rate, sometimes by a
nice margin. (FP rate for both lists is about the same; VERY close to
zero.) If you like Spamhaus, you should try Barracuda block-list and
see if it helps in your mail stream. (Every stream is different, so my
results may not match your results.)
jms
--
Joel M Snyder, 1404 East Lind Road, Tucson, AZ, 85719
Senior Partner, Opus One Phone: +1 520 324 0494
j...@opus1.com http://www.opus1.com/jms
