Port 25 - Blacklash

Alexei Roudnev alex at relcom.net
Wed Apr 27 08:11:03 UTC 2005


Hmm, the onses who block everything and cut wires off send 0 spam. So what?

----- Original Message ----- 
From: "Daniel Golding" <dgolding at burtongroup.com>
To: "Hank Nussbacher" <hank at mail.iucc.ac.il>; "Adam Jacob Muller"
<adam at gotlinux.us>
Cc: "Nanog Mailing list" <nanog at merit.edu>
Sent: Tuesday, April 26, 2005 2:50 PM
Subject: Re: Port 25 - Blacklash


>
>
> 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 at 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%20Cab
le>
> >
> >
> > -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.
>
>




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