[78259] in North American Network Operators' Group
Re: Why do so few mail providers support Port 587?
daemon@ATHENA.MIT.EDU (Edward B. Dreger)
Fri Feb 25 17:54:36 2005
Date: Fri, 25 Feb 2005 22:54:20 +0000 (GMT)
From: "Edward B. Dreger" <eddy+public+spam@noc.everquick.net>
To: just me <matt@snark.net>
Cc: Frank Louwers <frank@openminds.be>, <nanog@merit.edu>
In-Reply-To: <Pine.GSO.4.61.0502251424430.29345@pants.snark.net>
Errors-To: owner-nanog@merit.edu
jm> Date: Fri, 25 Feb 2005 14:25:48 -0800 (PST)
jm> From: just me
jm> What are you, stupid? The spammers have drone armies of machines
jm> with completely compromised operating systems. What makes you think
jm> that their mail credentials will be hard to obtain?
Internal users: With AUTH - correlate message with authenticated user,
then forbid mail transmission for them only. I'd rather do that than
slog through RADIUS logs. But, hey, maybe if I had more free time...
External users: They must send mail somehow. If saying "You roam? Use
this port!" is too difficult, try explaining multiple profiles. Short
of using 25/TCP on the service provider's network (which could be
amusing for those using wholesale dialup providers), users need some way
to pass email.
Eddy
--
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________________________________________________________________________
DO NOT send mail to the following addresses:
davidc@brics.com -*- jfconmaapaq@intc.net -*- sam@everquick.net
Sending mail to spambait addresses is a great way to get blocked.
Ditto for broken OOO autoresponders and foolish AV software backscatter.
