North American Network Operators Group
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Re: SMTP Port Blocking: Success or Failure?
- From: John Levine
- Date: Sun Feb 27 11:20:53 2005
>What about rate limiting SMTP traffic rather than blocking it? That
>could allow legitimate use for most private customers, while
>preventing bulk traffic.
Comcast has been doing something like that, looking for spikes of SMTP
connects and blocking when they see them, done at the IP level. I
can't say that I'm overly impressed with how well it's working, but
it's better than nothing.
Regards,
John Levine, johnl@iecc.com, Primary Perpetrator of "The Internet for Dummies",
Information Superhighwayman wanna-be, http://www.johnlevine.com, Mayor
"I dropped the toothpaste", said Tom, crestfallenly.
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