[77095] in North American Network Operators' Group
Re: fixing insecure email infrastructure (was: Re: [eweek article] Window of "anonymity" when domain exists, whois not updated yet)
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Wed Jan 12 23:20:55 2005
To: Dave Crocker <dcrocker@bbiw.net>
Cc: Steven Champeon <schampeo@hesketh.com>, nanog@merit.edu
In-Reply-To: Your message of "Wed, 12 Jan 2005 19:19:24 PST."
<2005112191924.556917@bbprime>
From: Valdis.Kletnieks@vt.edu
Date: Wed, 12 Jan 2005 23:19:47 -0500
Errors-To: owner-nanog-outgoing@merit.edu
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On Wed, 12 Jan 2005 19:19:24 PST, Dave Crocker said:
> On Wed, 12 Jan 2005 17:40:10 -0500, Valdis.Kletnieks=40vt.edu wrote:
> >=A0 >=A01) any legitimate mail source MUST have valid, functioning, no=
n-generic
> >=A0 >=A0=A0=A0=A0rDNS indicating that it is a mail server or source.
> >
> >=A0 And how, exactly, does it indicate it's a mail server or source?
>=20
> In general, that's what dkeys/iim and csv (and maybe spf) are attemptin=
g to provide.
Yes, but he asked for a rDNS solution specifically...
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