RE: Spam issue Exch2k

  • From: "John Tolmachoff \(Lists\)" <johnlist@xxxxxxxxxxxxxxxxxxx>
  • To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
  • Date: Fri, 12 Sep 2003 11:55:47 -0700

> We are currently evaluating spam filters. Our concern is false positives
> and business impact as a result. What is your expert opinion on false
> positives.

Generally, the amount of false positive depend on what you are doing to
fight spam and how aggressive you want to be and how much time can be spent
on reviewing messages caught and or deleted.

Hands on usage or using a service (product with a service behind it)
produces the lowest amount of false positives.

Personally, I strive for less than 2% held and no deleted.

Any one who says they have 0 false positives with 95% or better spam caught
will sell you the Brooklyn bridge.

The war on spam is like the old 80-20 rule. 20% of effort to get 80% of
spam, 80% of effort to try to get the last 20% of spam.

John Tolmachoff MCSE CSSA
eServices For You

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