North American Network Operators Group

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Re: Why do so few mail providers support Port 587?

  • From: Edward B. Dreger
  • Date: Sat Feb 26 20:36:12 2005

jm> Date: Fri, 25 Feb 2005 15:13:04 -0800 (PST)
jm> From: just me

jm>   Internal users:  With AUTH - correlate message with authenticated user,
jm>   then forbid mail transmission for them only.  I'd rather do that than
jm>   slog through RADIUS logs.  But, hey, maybe if I had more free time...

jm> Increasing the detail of an audit trail doesnt mean anyone will
jm> automatically use the information in an effective manner.

Fingerprints and DNA analysis are equally useless, I suppose.

jm> Without auth, most ISPs could correlate abuse behavior between MTA
jm> logs and RADIUS logs, if they cared. Most don't. SMTP AUTH won't
jm> change that.

I guess it's probably fallacious to argue from the viewpoint of ISPs
caring.  Please pardon my Freudian slip.

Everquick Internet -
A division of Brotsman & Dreger, Inc. -
Bandwidth, consulting, e-commerce, hosting, and network building
Phone: +1 785 865 5885 Lawrence and [inter]national
Phone: +1 316 794 8922 Wichita
DO NOT send mail to the following addresses:
[email protected] -*- [email protected] -*- [email protected]
Sending mail to spambait addresses is a great way to get blocked.
Ditto for broken OOO autoresponders and foolish AV software backscatter.