Am 03.12.2014 um 11:39 schrieb Steve Freegard:
If you're willing to spend the time to learn it and get your hands dirty a bit, then DSPAM is well worth the effort IMO. It's way faster than SpamAssassin (due to the bazillion network tests that SA does) and is a considerably more advanced implementation of Bayes than SA
the bazillion network tests (if dspam is really missing them) are a great benefit because you can't catch most fresh spam only by content nor rely on content analysis alone without whitelists for sane results
we achieve with SpamAssassin and wise postfix filters in front a 98% spam hit rate (meaning reject at smtp level) with below 10 false positives per month
guess what - these below are most responsible by a reject score of 8.0 combined with whitelists and BAYES_00 configure with a -3.0 score
score URIBL_AB_SURBL 4.5 score URIBL_JP_SURBL 4.5 score URIBL_MW_SURBL 5.0 score URIBL_PH_SURBL 5.0 score URIBL_WS_SURBL 3.5 score URIBL_SC_SURBL 0.5 score URIBL_SBL 1.0 score URIBL_SBL_A 1.2 score URIBL_DBL_SPAM 3.0 score URIBL_DBL_BOTNETCC 3.0 score URIBL_DBL_PHISH 3.5 score URIBL_DBL_MALWARE 3.5 score URIBL_DBL_ABUSE_SPAM 3.0 score URIBL_DBL_ABUSE_BOTCC 3.0 score URIBL_DBL_ABUSE_PHISH 5.0 score URIBL_DBL_ABUSE_MALW 5.0 score URIBL_BLACK 6.5 score URIBL_GREY 0.5 score URIBL_RED 0.5 score URIBL_DBL_REDIR 0.1 score URIBL_DBL_ABUSE_REDIR 0.3
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