North American Network Operators Group

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Re: Charter blocking Port 25

  • From: Gregory (Grisha) Trubetskoy
  • Date: Thu Jun 10 00:14:07 2004

Cox also filters your e-mail on their SMTP server such that if it contains
both words "root" and "password" it will get silently dropped.  This is
why I'm using an alternate port to bypass their SMTP server (or you
wouldn't get this e-mail).

Grisha


On Wed, 9 Jun 2004, W. Mark Herrick, Jr. wrote:

>
>
> Cox does, and Adelphia is moving that way.
>
> Good job, Charter.
>
> At 07:03 PM 6/9/2004, Arman wrote:
>
> >Hello,
> >
> >I would like to hear from Charter Communication's network/security team
> >why they have filtered outbound port 25 without any notice as of yesterday.
> >
> >Does anybody else know of other cable/DSL providers that simply block
> >outbound port 25?
> >
> >thanks
> >arman
>
> W. Mark Herrick, Jr.
> Director - Data and Network Security
> Adelphia Communications
> 5619 DTC Parkway
> Greenwood Village, CO 80111
> (O) 303-268-6440
> (C) 720-252-5929
> (F) 303-268-6382
>