[146177] in North American Network Operators' Group
Re: Performance Issues - PTR Records
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Mon Nov 7 02:36:17 2011
To: Robert Bonomi <bonomi@mail.r-bonomi.com>
In-Reply-To: Your message of "Mon, 07 Nov 2011 01:09:19 CST."
<201111070709.pA779JpT049171@mail.r-bonomi.com>
From: Valdis.Kletnieks@vt.edu
Date: Mon, 07 Nov 2011 02:34:17 -0500
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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On Mon, 07 Nov 2011 01:09:19 CST, Robert Bonomi said:
> You're missing some 'obvious' considerations. Consider a spam complaint
> sent with 'full headers' included. The rDNS _at_the_time_of_the_crime_
> is present in the complaint.
And if the rDNS isn't provided, any sane MTA will have included the IP address
and timestamp involved, which shouldn't take you all *that* much longer to
track down to one of your users.
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