North American Network Operators Group|
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RE: SMTP Port Blocking: Success or Failure?
How effective is rate limiting - can anyone from Comcast reaply to me offlist, I would be very intersted in results ... PR -----Original Message----- From: email@example.com [mailto:firstname.lastname@example.org]On Behalf Of John Levine Sent: Sunday, February 27, 2005 11:20 AM To: email@example.com Cc: firstname.lastname@example.org Subject: 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@example.com, Primary Perpetrator of "The Internet for Dummies", Information Superhighwayman wanna-be, http://www.johnlevine.com, Mayor "I dropped the toothpaste", said Tom, crestfallenly.