> Wasn't there a book called "Lying through statistics"?  Your statistic --
> rejecting 84% of E-mail -- is meaningless in almost all spam
> contexts.  Heck, if you want statistics, in July, Brightmail  claimed 50%
of
> E-mail was spam.  84% minus 50% is 34%, so if their stats apply to your
> system, so you are rejecting some 34% of your legitimate E-mail.   Let's
not
> play games with stats (for those reading this, I'm sure Len's FP ratio is
> much less than 34%, although it wouldn't surprise me if it was as high as
> 5% to 10%).

Actually, he is accepting 16% of mail. another 34% is rejected that is not
spam (using these figures). So, he is rejecting over 2 legit messages for
every one accepted.

And the arguments about complaints are the only FP's are bogus -- how is the
sending company supposed to complain to abuse@ or postmaster@ if you are
rejecting the server before knowing the message content?  And if you
whitelist these two addresses, you are letting in tons of spam anyway.

As to the 160K spam messages - isn't Len the one that advocates just
dropping connection on those servers that are rejected, rather than sending
out an error code to stop delivery? Since the other end will then keep
attempting delivery (by design for internet mail delivery), it seems his
160K is probably closer to 1/5 that in real delivery attempts, the rest just
being retries.


K

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