> > I just got a spam about diplomas which didn't get caught and
> > noticed the phrase "Confidentiality assured" in the email.
> Well, I can think of several reasons why confidential and
> confidentiality etc may be used in legit emails.
>
> I receive many emails with confidentiality disclaimers attached
> at the bottom. I'm sure you may have seen a few. Disclaimers
> that say the contents of this email are confidential blah blah blah.
> I know a rule based on those phrases would be give me a huge
> number of false positives.
A rule looking for "confidential" would certainly cause problems. I think I
have yet to see one of those that includes "Confidentiality assured", or
even "Confidentiality". A rule for the first one is unlikely to cause a
great deal of problem for anyone other than spammers, and even the second
one could be helpful if given a fairly low score. I believe someone ran
those both through a corpus test, and they got very low, if any, ham hits.
Loren
