On Wed, 2 Aug 2006, Zinski, Steve wrote:

> > A possibly better method is to block SMTP outbound from the ISP.
> 
> That's what we do here at the University of Richmond. Our firewall is
> configued to block all outbound SMTP connections (except those of our
> legitimate SMTP servers). This dramatically reduced the flow of spam
> from our campus. We can now use tools to track (and block) spammers
> since we only have to watch one or two servers (SpamShield works
> nicely!)

Do you also watch the logs of blocked outbound SMTP to detect and fix
infected hosts?

--
 John Hardin KA7OHZ    ICQ#15735746    http://www.impsec.org/~jhardin/
 [EMAIL PROTECTED]    FALaholic #11174    pgpk -a [EMAIL PROTECTED]
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 Look at the people at the top of both efforts. Linus Torvalds is a
 university graduate with a CS degree. Bill Gates is a university
 dropout who bragged about dumpster-diving and using other peoples'
 garbage code as the basis for his code. Maybe that has something to
 do with the difference in quality/security between Linux and
 Windows.                            -- anytwofiveelevenis on Y! SCOX
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