[patch] BayesianSpam matcher + SMTPACL after DATA

[Alex Zhukov]

hi everybody
yet another feature addition for james

BayesianSpam is a matcher to filter out spam using statistical approach.
There's a lot of buzz around this technique so I wont describe it (google it if you are new).

SMTPACL after DATA is an extension of my previous SMTPACL patch acls are now applied after DATA command in SMTP dialog.

NOTE: Cool feature:
You can use BayesianSpam matcher after DATA as access controlling matcher.
So spam will even never reach your spool.
Imagine:
        > HELO spammerhost.but.seems.like.normal.one.com
        < 250 hi
        > MAIL FROM: <[EMAIL PROTECTED]>
        < 250 Sender ok
        > RCPT TO: <[EMAIL PROTECTED]>
        < 250 Recipient ok
        > DATA
        < 354 Ok Send data ending with <CRLF>.<CRLF>
        > Spam here
        > Enlarge penis
        > Free viagra
        > bla bla bla
        < 550 SMTPACLReject spam detected.
        > QUIT
        < 221 closing

Installation and more detailed explanation is inside the attached tar.gz

bayes_acl_20040219.tar.gz
Description: GNU Zip compressed data

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