Educause Security Discussion mailing list archives

Re: Extremely High Spam Statistics


From: "Daniel J. Cody" <dcody () UWM EDU>
Date: Tue, 13 Feb 2007 11:20:14 -0600

Are other institution's spam levels this high?  I would be very
interested in hearing stats as I thought global rates were only around
90-95%.

We deliver around 3 million messages per day to users inboxes, 87%-93%
of which we identify as spam and filter to a spam folder on a regular
basis.

That doesn't include the very very large number of attempted deliveries
from SMTP servers that try to pipeline data which are blocked, or the
20%-25% messages which are discarded at our edge servers due to an
extremely high spam score.

Daniel Cody
E-mail manager
University of Wisconsin Milwaukee

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