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Re: Extremely High Spam Statistics
From: "Walter E. Petruska" <wpetruska () USFCA EDU>
Date: Mon, 12 Feb 2007 18:06:30 -0800

We've varied up and down each month, but normally we're about 30 Percent passed thru, with 70% blocked as either spam 
or virus-containing.  The trend from a few years ago was steadily negative, we eventually instituted enterprise 
scanning/blocking which reduces the storage load and risk of delivery of spyware/viruses to the end user, but it still 
takes up a fair amount of our bandwidth, with SMTP being the 6th highest on our Internet link.
I've heard some schools being up to the 80's, but 90% or above seems pretty outrageous.
Walter Petruska
University of San Francisco


From: Ken Connelly [mailto:Ken.Connelly () UNI EDU]
Sent: Mon 2/12/2007 16:58
Subject: Re: [SECURITY] Extremely High Spam Statistics

Tim -

We're a mid-sized university in the US.  Between 1M and 1.5M messages
come knocking at our door most days, with roughly 90% of those being
categorized as spam.

- ken

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
valid email.

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
8 http://www.scu.edu.au <http://www.scu.edu.au/> 

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