[107400] in North American Network Operators' Group
Re: ingress SMTP
daemon@ATHENA.MIT.EDU (Suresh Ramasubramanian)
Wed Sep 3 11:50:42 2008
Date: Wed, 3 Sep 2008 21:20:31 +0530
From: "Suresh Ramasubramanian" <ops.lists@gmail.com>
To: *Hobbit* <hobbit@avian.org>
In-Reply-To: <20080903151617.A14277808@relayer.avian.org>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
On Wed, Sep 3, 2008 at 8:46 PM, *Hobbit* <hobbit@avian.org> wrote:
>
> What I'm trying to get a feel for is this: what proportion of edge
> customers have a genuine NEED to send direct SMTP traffic to TCP 25
> at arbitrary destinations? I'm thinking mostly of cable-modem and
Not too many - they got themselves port 587 to submit outbound mail.
Read the maawg managing port 25 document - and while you are at it
read the walled garden doc too.. port 25 abuse is the least of your
worries with cable/dsl cpe swamps
http://www.maawg.org/port25
http://www.maawg.org/about/whitepapers/MAAWG_Walled_Garden_BP_2007-09.pdf
--srs
