SMTP and multicasting

At 11.02 -0500 04-01-30, Bonatti, Chris wrote:
>Yet SMTP is ALWAYS unicast
>connection-oriented.

SMTP was multicasting until a few years back, when some
dumb people thought they could stop spam by forbidding an
SMTP server to accept messages which were not to or from a
local user. We all know that they did not succeed!

Until then, you could send one copy of a message across the
Atlantic, and have it expanded to multiple-recipients at
the other side. Now, you can do the same thing only
if all the recipients belong to the same local mail server.
-- 
Jacob Palme <[email protected]> (Stockholm University and KTH)
for more info see URL: http://www.dsv.su.se/jpalme/