http://www.spamcop.net/w3m?action="">
Note that they fare better than most large ISP's because they don't
pump hardly any broadband customers out of these servers, and dial-up
users are highly unlikely to get hijacked by a spammer.
Matt
Shayne Embry wrote:
Message
John,
I didn't say that. In my case I haven't
received any legitimate email from those domains and I do receive a
considerable amount of spam from them, so I tend to treat them
accordingly.
To answer the original question, in my case
SpamCop is very, very effective and I use it aggressively. I rarely see
a false positive. But as I said, everyone has different needs. I'm not
trying to disagree with anyone posting here about their experiences and
practices. Just relaying my experience.
Shayne
So, if I
sent you a message from my home ISP account, which is Adelphia, you
would automatically consider it spam?
John
Tolmachoff
Engineer/Consultant/Owner
eServices
For You
-----Original
Message-----
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Shayne Embry
Sent: Wednesday,
April 28, 2004 6:46
AM
To:
[EMAIL PROTECTED]
Subject: RE:
[Declude.JunkMail] How accurate is spamcop
Personally,
I don't consider this a problem with SpamCop. I understand that
different people have different needs, but in my case every message
entering my system from adelphia.net and wanadoo.fr is spam.
-----Original
Message-----
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Matt
Sent: Tuesday, April 27, 2004 6:21 PM
To:
[EMAIL PROTECTED]
Subject: Re:
[Declude.JunkMail] How accurate is spamcop
SpamCop has a serious problem
with blacklisting large ISP mail servers. Just yesterday I had three
false positives partially caused by SpamCop weighted at about 45% of my
hold weight for the domains in question, and hitting E-mail coming from
adelphia.net, wanadoo.fr and netvision.net.il, all large ISP mail
servers. Based on my review of SpamCop on these ISP mail servers, I
estimate that they have between a 1 in 20 and a 1 in 50 chance of a
message getting improperly tagged when they come through such an ISP.
This also caries over to the likes of AOL and Road Runner.
I once contacted one of their "Deputies" about the issue and their
response was that "SpamCop is aggressive." Unfortunately their failure
to resolve this long-standing problem of treating an ISP mail server
that sends 99.99% legit E-mail just the same as a mail server belonging
to a spam house weakens the value of their blacklist a great deal and
causes administrators like ourselves a lot of frustration that
something so obvious couldn't be corrected.
SpamCop also has a fundamental flaw in that submitted spam that gets
forwarded from one server to a destination often causes the forwarding
server to get tagged, and forged headers can also trick them from time
to time.
I would suggest weighting SpamCop at no more than 60% of your hold
weight, and add as many reliable tests as possible. SpamCop is however
a very important test, and it accurately flags about 2/3 of the spam
reaching my server.
Matt
Doris Dean wrote:
Is it safe to simply delete an
email flagged with spamcop?
--
=====================================================
MailPure custom filters for Declude JunkMail Pro.
http://www.mailpure.com/software/
=====================================================
--
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MailPure custom filters for Declude JunkMail Pro.
http://www.mailpure.com/software/
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