[lug] Comcast Egress Filtering Port 25

[Bear Giles]

I saw a delay, but I can connect to my mail server located at tummy.

I know I'm in the minority here, but I would be happy to see comcast add 
port 25 filtering.  The ratio of pwned spam sites vs. legitimate users 
must be, what, 1000-to-1 by now?  Even less?  People working from home 
will probably be accessing their work mail servers via VPN anyway.

I do the same thing with my own email, incidently.  All of my mail, both 
ways, goes over an openvpn connection.

Looking ahead a few years, I wouldn't be surprised to see port 80 
blocked.  Again it's the pwned vs. legitimate users. All it will take is 
one fraud victim with deep pockets suing comcast or a peer for not 
taking 'reasonable and prudent' technical measures to block the 
fradulent pwned websites hosted on their network.

George Sexton wrote:
> George Sexton wrote:
>> Has anyone else noticed that Comcast seems to be egress filtering 
>> port 25? I can no longer connect to my mail server on port 25, or 
>> port 465. FWIW, my mail server is mail.mhsoftware.com which is in a 
>> colocation in Ft. Collins.
>
> My mistake. I turned on port 465 in postfix, but didn't open the
> iptables rules to allow it. Port 465 works, but port 25 seems to be 
> blocked.
>