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Re: Extremely High Spam Statistics
From: Joel Rosenblatt <joel () COLUMBIA EDU>
Date: Tue, 13 Feb 2007 13:11:05 -0500

Our spam rates run between 60%-85% spam depending on the volume of real mail - the amount of spam we get remains pretty 
constant at between 1.1 and 1.4 million
per day.

Thanks,
Joel Rosenblatt

Joel Rosenblatt, Senior Security Officer & Windows Specialist
Columbia Information Security Office (CISO)
Columbia University, 612 W 115th Street, NY, NY 10025 / 212 854 3033
http://www.columbia.edu/~joel


--On Tuesday, February 13, 2007 11:20 AM -0600 "Daniel J. Cody" <dcody () UWM EDU> wrote:

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



Joel Rosenblatt, Senior Security Officer & Windows Specialist
Columbia Information Security Office (CISO)
Columbia University, 612 W 115th Street, NY, NY 10025 / 212 854 3033
http://www.columbia.edu/~joel

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