Re: [cobalt-users] MX Records and failover servers

["E.B. Dreger" <eddy+public+spam@xxxxxxxxxxxxxxxxx>]

JL> Date: Thu, 23 May 2002 10:53:24 -0700
JL> From: Jeff Lasman


JL> > Does this mean that the primary mailserver can send an ETRN
JL> > message to the raq, and the raq would respond to this by
JL> > sending the messages in its queue to the primary mail
JL> > server?

JL> ETRN is better suited for (and I believe designed for)
JL> servers that are intended to be offline more than they are
JL> online, and to get email from a higher-priority server.

Yep.  For secondard MX, we don't bother with ETRN.  We _do_ use
it for the situation that you described.

IIRC, Sendmail 8.10.x was the first version that had a check_etrn
rule built in.  Handy to prevent random people from trying to
tickle the queue.


--
Eddy

Brotsman & Dreger, Inc. - EverQuick Internet Division
Phone: +1 (316) 794-8922 Wichita/(Inter)national
Phone: +1 (785) 865-5885 Lawrence

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