content regulation, was Verizon Policy Statement on Net Neutrality

John R. Levine johnl at
Sun Mar 1 22:01:32 UTC 2015

>>>> 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.


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