[51155] in North American Network Operators' Group
Re: IETF SMTP Working Group Proposal at smtpng.org
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Wed Aug 21 16:34:41 2002
To: Jared Mauch <jared@puck.Nether.net>
Cc: nanog@nanog.org
In-Reply-To: Your message of "Wed, 21 Aug 2002 15:51:36 EDT."
<20020821195136.GC19016@puck.nether.net>
From: Valdis.Kletnieks@vt.edu
Date: Wed, 21 Aug 2002 16:17:53 -0400
Errors-To: owner-nanog-outgoing@merit.edu
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On Wed, 21 Aug 2002 15:51:36 EDT, Jared Mauch said:
> i do think some sort of smtp-callback would be nice/useful
> for validation of e-mail addresses. it'll make it so
> the bounces go to someplace at least instead of Postmaster.
The fact that you can call back in no way means that bounces won't
double-bounce into the postmaster mailbox. I'm sure that yahoo.com
would buy into a callback scheme, but it wouldn;t have done squat for
this double-bounce:
----- Transcript of session follows -----
... while talking to mx1.mail.yahoo.com.:
>>> DATA
<<< 554 delivery error: dd Sorry, your message to xxxxxxxx@yahoo.com cannot be delivered. This account is over quota. - mta461.mail.yahoo.com
554 5.0.0 Service unavailable
(OK, so THIS double-bounce was a W32/Klez-H generated one, but I get enough
of the same thing for spam with a Yahoo return adress).
--
Valdis Kletnieks
Computer Systems Senior Engineer
Virginia Tech
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