On 2009-07-04 20:58, Steven D'Aprano wrote:
[snip]
The only downsides to SpamAssassin are that you need to be running your
own mail server,
Setting one up takes a little research, but Debian, at least, does a
lot of the configuring for you, making you select 1 of 5(?)
different kinds of service (everything from ISP to local-only), then
prompting you for the relevant info.
All I needed to to were some minor tweaks to integrate SpamAssassin.
it is relatively weak at "picture spams", and by
default is has the unfortunately habit of learning from it's own
mistakes. Not in the good way of "well don't do that again", but in the
bad way of "I think that's spam, so I'll flag anything that looks like
that as spam" -- even when it isn't.
Given that last factor, SpamAssassin requires some administration, so
it's not just fire-and-forget, but I'd recommend it.
There's a teaching app, sa-learn, which you feed it an mbox of ham
or spam. Do that a few times over the space of a month or two, and
you're good to go, with very few false positives.
False negatives will always be a problem, though, because there are
an infinite variety of ways to write spam, but a finite number of
heuristics.
--
Scooty Puff, Sr
The Doom-Bringer
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