Small, probably unrelated note about verizon. They use a CBV (Call back
Verifier) currently to validate the Return Path.
----- Original Message -----
From: "Jonathan Gardner" <jonagard(_at_)amazon(_dot_)com>
To: <spf-discuss(_at_)v2(_dot_)listbox(_dot_)com>
Sent: Friday, June 25, 2004 5:40 PM
Subject: Re: [spf-discuss] Possible New Mechanism Prefix
[snip]
Consider the case of Verizon. They have hundreds of email servers shuttling
mail around for millions of customers, let's say. They also send mail for
you.
[snip]
....
Jonathan M. Gardner
Mass Mail Systems Developer, Amazon.com
jonagard(_at_)amazon(_dot_)com