On Tue, 25 Oct 2011, RW wrote:
On Tue, 25 Oct 2011 06:28:41 -0700 (PDT)
John Hardin wrote:
Seconded. MTAs typically have efficient facilities for white- or
black-listing specific email addresses. Use the capabilities of your
MTA and glue layer to completely bypass SA for those addresses since
you _know_ you want to receive mail from them.
The downside to that is that it's not going through Bayes, so there's
no auto-learning or atime updates. So when someone with a whitelisted
address delegates, moves-on, or uses a different account, Bayes may be
less well prepared than it would otherwise be. I suspect that in some
cases MTA whitelisting may actually lead to a worse FP rate than doing
nothing - particularly where BAYES_00 has been given a more substantial
score.
Modulo manual training with classified & miss corpora, of course. I
distrust autolearn, but then I've never administered SA in a large user
environment.
--
John Hardin KA7OHZ http://www.impsec.org/~jhardin/
jhar...@impsec.org FALaholic #11174 pgpk -a jhar...@impsec.org
key: 0xB8732E79 -- 2D8C 34F4 6411 F507 136C AF76 D822 E6E6 B873 2E79
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