Re: Paul's Mailfrom (Was: IETF SMTP Working Group Proposal at smtpng.org)

[Martin <marty () supine com>]

$author = "John Kristoff" ;
> I'm not sure how to truly disable an SMTP server from running on an end
> host.  You can block or force forward port 25, but that is just a
> number.  Be prepared to start doing that for all ports, then protocols,
> then IP addresses, then protocols again.

but surely an MTA derives it's usefulness by running on port 25. i don't
remember reading about where in the DNS MX RR you could specify what port
the MTA would be listening on...

marty

--
My Everest is not in Nepal, 
She's sleeping in the bedroom second right down the hall.
Ed Hiliary couldn't crack this nut, 
He'd be hiding in the lounge room with the rest of us.

"My Everest" - Lazy Susan