Re: Junk mail filter for RWW?

From: M Callinan (mcallinan_at_dslextreme.com)
Date: 03/29/04 

Date: Mon, 29 Mar 2004 12:29:32 -0800

Since it's a blacklist filter based product, it all depends on which
blacklists you choose to use. The two best blacklists that I have found so
far are sbl-xbl.spamhaus.org and bl.spamcop.net. Overall, the 7 blacklists
I have configured catch slightly greater than 90% of all the spam I receive.
Not bad for freeware. The Junk email filter in Outlook 2003 catches almost
all the rest. Only about 1 spam a day or less has made it through to my
inbox. I was getting about 200 a day before. Most of these blacklists are
updated many times a day, so they seem to be pretty effective in identifying
the latest sources of spam. Here are the blacklist server stats (from
ORFStats, the companion to ORFilter) for the last week that I've had it
running:

Total Spam caught : 1757
Spam caught per blacklist server Server Spam caught % of total spam
caught
====================== ============= ================
sbl-xbl.spamhaus.org 1416 80.59 %
bl.spamcop.net 1226 69.78 %
dnsbl.sorbs.net 693 39.44 %
dnsbl.njabl.org 521 29.65 %
list.dsbl.org 266 15.14 %
relays.visi.com 50 2.85 %
relays.ordb.org 5 0.28 %

At another location I'm testing an open-source Bayesian spam filter product
call SpamBayes (http://spambayes.sourceforge.net). It runs on the client
side as a plugin to Outlook. I'm using this on Outlook 2002 clients
connected to an Exchange 5.5 server because I couldn't find a cheap (free!)
server side solution. It installs easily, but takes a little time to
configure, as the filter needs to be trained the first time its used, but
it's been >95% effective so far. There's also a commercial product based on
SpamBayes at http://www.inboxer.com, which is supposed to be easier to
configure for less experienced users. InBoxer costs about $28 per client,
but I don't have any personal experience with it. Before I installed
SpamBayes, I was trying to use the Junk email filter in Outlook 2002, but
that was a losing battle as that filter isn't very intelligent. SpamBayes
continues to learn and adapt to the type of good and bad email that you
receive, so it gets smarter over time. Overall, it has let me get back
control of my inbox at this location, so IMHO its worth installing if you
aren't already using something better.

"Russ" <russ@NoSpamrussellgrover.com> wrote in message
news:umqWww6EEHA.3880@TK2MSFTNGP10.phx.gbl...
> Does that stop any or is it a useless battle?
> With blacklisting.
> Russ
>
> "M Callinan" <mcallinan@dslextreme.com> wrote in message
> news:%239xqp24EEHA.1560@TK2MSFTNGP12.phx.gbl...
> > I use a DNS black list filter in my home setup:
> > http://martijnjongen.com/eng/orfilter/about.htm
> > Works fine on SBS2k3 and Exchange 2k3.
> >
> > "Skip Shean" <skipshean@nospamhotmail.com> wrote in message
> > news:%23gNh8A4EEHA.3256@TK2MSFTNGP09.phx.gbl...
> > > Is there a way to filter Junk E-mail on RWW? Obviously it would need
to
> > run
> > > on the server. Also, I'm running this in my house, so getting a $1500
> > > license to something that I'd do in 2 seconds for a client won't work.
> > The
> > > junk email filter that is built into Outlook 2003 is fine, if there's
a
> > way
> > > to implement it server-side.
> > >
> > > Any ideas?
> > >
> > >
> >
> >
>
>

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