Ron,
Tuesday, November 12, 2002 you wrote:
RH> I currently Hold a lot of e-mail failing a lot of the open relay tests.
The only two tests I hold directly are ORDB and SNIFFER. ORDB is
about 99% for me and SNIFFER is less but still very high. Mainly
SNIFFER fails on lists and personal messages from people who have
spam domain addresses. ORDB only catches about 3.6% of our failed
messages so it is not a big deal one way or the other.
RH> I am considering holding SpamCop and OSSRC also. I have not
RH> noticed any legitimate e-mail failing these two tests. Can you
RH> reply with some opinions please?
SPAMCOP is my number 3 test in terms of number of failed messages.
It ranks at 60.22% of failed messages compared to SNIFFER's 75.5%.
But it fails too many legitimate messages for my users.
OSSRC ranks 12th at 14.3% of failed messages but it also fails too
many messages for me to hold on it alone.
However, I weight both SPAMCOP and OSSRC so that any other test
failed with them will trigger a HOLD.
Keep in mind that we monitor HOLD and on average have to unhold
about 2% of filtered messages.
RH> Also, I currently hold e-mail failing the OSSOFT, which will hold
RH> Yahoo mail. How does everyone else handle this issue?
I weight OSSOFT the same as SPAMCOP and OSSRC. It fails about 4%
of our failed messages.
But I think that every user community is probably different and ours
certainly changes over time so I do monitor and tweak these settings
frequently.
HTH
Terry Fritts
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