[dba-Tech] Spam, spam, spam, spam ....revisited

Anyone know anything about either 0Spam (that's ZeroSpam) or Cloudmark? Both
came out high in a recent survey in 'Which?' magazine. )Spam appears to be a
service, which I personally would be wary of for security reasons, but my
friend who's looking seems coola bout. Cloudmark I don't know but looks like
a major product. Anyone any first-hand experience of either?

-- Andy Lacey
http://www.minstersystems.co.uk