Re: Extremely High Spam Statistics

[Mark Bruhn <mbruhn () INDIANA EDU>]

The email addresses in our online directory have been images for several
years.  (http://people.iu.edu).  Works very well, and I don't know of many
complaints.

We see about 30,000,000 connect attempts per day, and sampling that shows a
pretty steady spam rate of 87%.  That includes rejected connects and
messages identified as spam by Puremessage (those messages go into a user's
junk/spam folder, and are deleted after 5 days).

M.

---
Mark S. Bruhn
Associate Vice President for Telecommunications
Executive Director, REN-ISAC
Office of the Vice President for Information Technology and CIO
Indiana University
812-855-0326


> From: Ken Connelly <Ken.Connelly () UNI EDU>
> Reply-To: The EDUCAUSE Security Discussion Group Listserv
> <SECURITY () LISTSERV EDUCAUSE EDU>
> Date: Tue, 13 Feb 2007 08:55:47 -0600
> To: <SECURITY () LISTSERV EDUCAUSE EDU>
> Subject: Re: [SECURITY] Extremely High Spam Statistics
>
> Roger Safian wrote:
> > At 06:51 PM 2/12/2007, Tim Lane put fingers to keyboard and wrote:
> >
> > > Hello,
> > >
> > > 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 90-95%.
> >
> > Your levels on spam seem high to me.  I'd suggest that you change your public
> > directory to not include email address in plain text.  You can obfuscate
> > them,
> > see our directory for an example.
> ooh, that's...  interesting.  How long have you been doing that and do
> you get complaints about it?  Anyone else doing similar things?
>
> --
> - Ken
> =================================================================
> Ken Connelly             Associate Director, Security and Systems
> ITS Network Services                  University of Northern Iowa
> email: Ken.Connelly () uni edu   p: (319) 273-5850 f: (319) 273-7373