Full Disclosure mailing list archives

Re: [Dshield] Re: Windows Messenger Popup Spam on UDP Port 1026


From: "Roy S. Rapoport" <full-disclosure () ols inorganic org>
Date: Sat, 21 Jun 2003 17:17:46 -0700

On Sat, Jun 21, 2003 at 09:41:18PM +0200, Dietmar Goldbeck wrote:
If ISPs start blocking ports, i would vote for tcp/25.
People should not be allowed to run smtp servers, unless
they have proven knowledge in the relevant RFCs. :-))

You're a little behind the curve -- blocking outbound port 25 is
becoming more and more standard, especially with some of the larger ISPs
(e.g. earthlink) as a spam-blocking measure.

-roy
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