1 Mar
2015
1 Mar
'15
4:44 p.m.
On Sun, Mar 1, 2015 at 4:25 PM, John Levine <johnl@iecc.com> wrote:
In article <20150301124846.GA16378@gsp.org> you write:
On Sat, Feb 28, 2015 at 08:03:28PM -0500, John R. Levine wrote:
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.