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Re: Extremely High Spam Statistics
From: Ben Spencer <ben.spencer () MOODY EDU>
Date: Tue, 13 Feb 2007 05:22:10 -0600

We are a much smaller school. If the 19500 messages which made it to the
spam filter, about 5000 passed through as spam. These numbers are offset
a lot since we have greylisting, SPF checks and a couple of other spam
catching things out in front of our spam box (an appliance). Before
putting these extra measures in place, we averaged around 6000 message /
hour (144K / day) with 75-85% being marked as spam.

Though, I guess 14,500 of 144,000 is around 10% (90% spam being

As stated by someone else, 90's do sound high and confirmation on false
positives may be needed.


Benji Spencer
System Administrator
Ph: 312-329-2288


From: Tim Lane [mailto:tlane () SCU EDU AU]
Sent: Monday, February 12, 2007 6:51 PM
Subject: [SECURITY] Extremely High Spam Statistics


I would be interested in comparing our spam stats with other
institutions.  We are currently sent around around 450 000 emails per
day, of which 98-99% are spam leaving around 5000 valid email messages
passed through.  This is transparent to our uses who only receive valid

Are other institution's spam levels this high?  I would be very
interested in hearing stats as I thought global rates were only around



Tim Lane
Information Security Program Manager

Information Technology and Telecommunication Services
Southern Cross University
PO Box 157 Lismore NSW 2480

*02 6620 3290   7              02 6620 3033   * tlane () scu edu au
* http://www.scu.edu.au <http://www.scu.edu.au>

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