All business do as much as they can to create a captive audience. That is
the only reason for the existing telephone numbers in VOIP applications.
Control peer to peer calling. Shoe sizes slightly different between
manufacturers. Propieruty software and databases and on and on.
The goal is to lock the customer in. Microsoft being the most successful.
----- Original Message -----
From: "David Brodbeck" <gull(_at_)gull(_dot_)us>
To: <spf-discuss(_at_)v2(_dot_)listbox(_dot_)com>
Sent: Wednesday, July 28, 2004 11:10 AM
Subject: Re: [spf-discuss] Overly broad ip range in spf - think like a
spammer
On Wed, 28 Jul 2004 10:16:14 -0400 (EDT), Stuart D. Gathman wrote
BTW, blocking outgoing tcp 25 is common, but I've never heard of an ISP
blocking 587. What would be the point?
Well, theoretically speaking...
Many ISPs charge extra for extra email addresses. They might block 587 to
force people to buy this service from them, instead of getting it
elsewhere.
A lot of the business these days seems to be about creating a captive
audience.
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