On Thu, 25 Mar 2004, Bourque Daniel wrote:
Ironmail also boost the score of an e-mail with a valid spf record.
Also, when using a Bayesian filter, if you add the Received-SPF header before
the bayes filter crunches the message, it will compile the SPF status as
part of its statistics. This automatically makes results of 'neutral'
and 'softfail' useful without rejecting *all* mail from AOL marked 'neutral',
for example. For instance, if almost all SPF neutral AOL mail is spam,
then a neutral result for AOL makes a high contribution to the spam
probability.
--
Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
"Very few of our customers are going to have a pure Unix
or pure Windows environment." - Dennis Oldroyd, Microsoft Corporation