[82023] in North American Network Operators' Group
Re: OT? /dev/null 5.1.1 email
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Fri Jul 8 15:34:08 2005
To: jm@jmason.org (Justin Mason)
Cc: Patrick Muldoon <doon@inoc.net>,
Brad Knowles <brad@stop.mail-abuse.org>, nanog@nanog.org
In-Reply-To: Your message of "Tue, 05 Jul 2005 21:27:23 PDT."
<20050706042723.CE4272F0439@radish.jmason.org>
From: Valdis.Kletnieks@vt.edu
Date: Wed, 06 Jul 2005 01:27:19 -0400
Errors-To: owner-nanog@merit.edu
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On Tue, 05 Jul 2005 21:27:23 PDT, Justin Mason said:
> BTW, someone (possibly Randal L. Schwartz) came up with a neat related
> trick to the above -- set up an interface alias on *the same machine* as
> the primary MX, list that as the last MX in the list, and (assuming that
> the software side of the primary MX is reliable) you're then assured that
> any SMTP traffic that arrives on that IP's port 25 is spam, since when
> the primary MX's hardware goes down, this MX will, too.
(Damn, left out a paragraph somehow)
And in fact, given that most link hiccups *are* transitory, the chances are *good*
that if our attempts at the first MX fail, the link will be back before we finish
running through the MX's - at which point we find ourselves talking to a spamtrap.
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