Anti Spam Landscape
peter at mcnabbs.org
Mon Jul 23 05:51:44 MDT 2007
On Jul 17, 2007, at 4:47 PM, Kimball Larsen wrote:
> So, I'm setting up a new mail server from scratch, using ubuntu on
> a new, fast server.
> In the past I've used spamassassin + postgrey for anti-spam, but
> lately it's not keeping up anymore. I've run across DSpam, and
> wondering if it's any better.
(No, this message is not a week late... it's probably because of
greylisting.. :) )
In the CS department at BYU, we use the spamhaus blacklist + DSPAM +
ClamAV. DSPAM was a little tricky to set up (permissions were
nightmarish), and has mixed results. My own account that uses it does
really well: 99.5% accuracy for 13,000+ messages (I haven't seen a
spam message for over two months... unless Michael Torrie's emails
count as spam. I've gotten a lot of those recently ;) ). However,
other users who do the training are only getting ~70% accuracy. There
is a way to set up a group account that everyone uses, but I haven't
yet tried that. I use spamassassin for my mcnabbs.org account, and
have pretty good results there, too; maybe one or two spam slip
through each day.
Since some people are not getting good filtering with DSPAM, I'll set
up spamassassin and have both as opt-in.
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