Educause Security Discussion
mailing list archives
Re: Extremely High Spam Statistics
From: Mark Borrie <mark.borrie () OTAGO AC NZ>
Date: Tue, 13 Feb 2007 14:35:42 +1300
Some stats from this part of the world.
Yesterday we had about 1.1 million smtp connects. We rejected 42% of
these. Of the remaining, a further 33% were flagged as spam.
This gives us about 61% of incoming email is caught as spam. This leaves
less than 20 other emails per user per day, which seems reasonable. We
do have some spam that gets through, but not a lot.
Your spam % seems very high, and your total valid messages seems low.
Tim Lane wrote:
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
Are other institution's spam levels this high? I would be very
interested in hearing stats as I thought global rates were only around
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
Information Security Manager,
Information Technology Services, University of Otago,
Ph +64 3 479-8395, Fax +64 3 479-5080, Mobile +64 27 609-6409