[GRLUG] Comcast and blocking port 25 delivery

[Michael Mol]

On Wed, Nov 12, 2008 at 2:51 PM, Collin Kidder <adderd at kkmfg.com> wrote:
> Ah, yes. The well meaning "we're hurting you for your own good" excuse.
> Same excuse used for the Patriot act and a number of other things.

I see their point on this one.  Comcast services one of the country's
largest collections of spam zombies.

What they *should* do is RDNS all nodes on their network to
something.comcast.net, and use SPF to flag any email from any
non-business customer node as "not allowed to send for this domain."

But I don't know that much about SMTP, DNS and SPF.


-- 
:wq