[178636] in North American Network Operators' Group

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Re: content regulation, was Verizon Policy Statement on Net Neutrality

daemon@ATHENA.MIT.EDU (John R. Levine)
Sun Mar 1 17:01:38 2015

X-Original-To: nanog@nanog.org
Date: 1 Mar 2015 17:01:32 -0500
From: "John R. Levine" <johnl@iecc.com>
To: "Christopher Morrow" <morrowc.lists@gmail.com>
In-Reply-To: <CAL9jLaaa5TOhHFF2VU1PT-5HqQw3J6iD2uGN0ZxisyBy=Z4Q7Q@mail.gmail.com>
Cc: nanog list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

>>>> Well, actually, it does.  Every broadband network in the US
>>>> currently blocks outgoing port 25 connections from retail customers.
>>>
>>> Unfortunately, that's not entirely true.  (Very) recent direct-to-MX spam
>>> from Comcast customers:
>>
>> Well, it's supposed to be blocked, according to people I've talked to
>> at Comcast and T-W as recently as a week ago.  I can believe that they
>> have configuration problems on a networks of that size.
>
> fairly certain that none of these folk block port 25 on their business
> customer links.

As I said above, retail customers.  Business customers get static IPs and 
generaly no blocking.

R's,
John

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