North American Network Operators Group|
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Re: SMTP Port Blocking: Success or Failure?
>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, [email protected], Primary Perpetrator of "The Internet for Dummies", Information Superhighwayman wanna-be, http://www.johnlevine.com, Mayor "I dropped the toothpaste", said Tom, crestfallenly.