[80165] in North American Network Operators' Group
Re: Port 25 - Blacklash
daemon@ATHENA.MIT.EDU (Daniel Golding)
Tue Apr 26 17:54:54 2005
Date: Tue, 26 Apr 2005 17:50:11 -0400
From: Daniel Golding <dgolding@burtongroup.com>
To: Hank Nussbacher <hank@mail.iucc.ac.il>,
Adam Jacob Muller <adam@gotlinux.us>
Cc: Nanog Mailing list <nanog@merit.edu>
In-Reply-To: <Pine.LNX.4.58.0504262142190.8721@efes.iucc.ac.il>
Errors-To: owner-nanog@merit.edu
Do all of Comcast's markets block port 25? Is there a correlation between
spam volume and the ones that do (or don't)?
In any event the malware is already ahead of port 25 blocking and is
leveraging ISP smarthosting. SMTP-Auth is the pill to ease this pain/
- Dan
On 4/26/05 2:49 PM, "Hank Nussbacher" <hank@mail.iucc.ac.il> wrote:
>
> On Tue, 26 Apr 2005, Adam Jacob Muller wrote:
>
> Doesn't seem to be stemming the tide of emails from Comcast though:
>
<http://www.senderbase.org/?searchBy=organization&searchString=Comcast%20Cable>
>
>
> -Hank
>
>> For example, about 2 months ago, comcast decided to block outgoing
>> port 25 from my entire neighborhood. I called comcast, and while
>> sitting on hold I had the idea to setup a ssh tunnel to a machine at
>> work and viola problem solved before anyone from comcast even
>> answered the phone.
