[Mimedefang] AWL and local.cf
mimedefang at nabs.net
Wed Aug 27 20:45:16 EDT 2008
On 27 Aug 2008 at 16:07, Kris Deugau wrote:
> > Q: Is AWL meaningful, when run on a separate mail server?
> > Isn't AWL implicitly a per-user facitlity? Is it best
> > practice to disable AWL, when running MDf on a separate
> > mail server?
> I'd say no; in fact, spammers are *less* likely than legitimate senders
> to regularly send email from the same IP (block) and so while the
> spammers won't have their scores kept high, legitimate senders are more
> likely to have their scores *dropped*.
That's somewhat true, but the reverse is also true: what would
otherwise be treated as spam would get through if that IP generally
sends very hammy e-mail.
Since I only mark up at 5 and reject at 10, it only happens a few times
a year, but for lower reject scores, it might be important.
In most cases, I think you want that e-mail to get through, at least
based on what I have seen. The messages often had characteristics of
spam (like lots of pictures and little text, or many typos), but were
not actually spam.
In my setup, I have tests other than AWL that push the IP towards its
long-term average "bad" behavior (like repeated quick retries when I
send a 50x result). Because of that, one IP address is on my temporary
auto-blacklist until next June.
Jeff Rife |
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