changes:
core:
- BOGUS_MX check added
If the MX of the sender domain is either empty or resolves to
127. or 192.168. or 10. then we add $bogus_mx_score (1.4)
and the mail is DEFERed (_not_ REJECTed) unless the overall score
is higher than $DEFER_LEVEL
config: @bogus_mx_score = (1.4, 0 );
$DEFER_STRING = "IN_SPAMCOP= BOGUS_MX=";
$DEFER_LEVEL = 5; # defer up to this level
- RHSBL check changed
All RHSBL entries are now queried
Also some other checks (like RANDOM_SENDER) modify a $rhsbl_penalty
which will be added to the rhsbl_score. You can change the factor
of rhsbl_penalties via @rhsbl_penalty_score
config: @rhsbl_penalty_score = (3.3, 0 );
- RANDOM_SENDER check added
The local part of an e-mail address is now checked against:
/[bcdfgjklmnpqrtvwxz]{5,}.*\@/i
and
/[aeiou]{4,}.*\@/i
to detect randomized addresses. The default score is kept rather
low because I know of the existance of such legitime addresses
(just do a grep on the postfix-user ML).
This score only high when RBL listed, also it modifies the
rhsbl_penalty (which will score higher then).
config: @random_sender_score = (0.1, 0 );
IMPORTANT NOTE:
All changes imply that usual results may be different now.
So please watch the logs and report false positives (false
positives are such ones which appear to be semi-perfect MTAs).
100% misconfigured MTAs/DNS are no false positives.
For instance, rejected yahoo groups would mean a false positive.
Also, everyone is invited to join #policyd-weight on IRCNet
--
Robert Felber (PGP: 896CF30B)
Munich, Germany
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