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Subject: RE: ETRN too fast!
From: Brad Knowles (blkskynet.be)
Date: Tue Sep 26 2000 - 15:00:51 CDT

At 11:53 AM -0700 2000/9/26, Doug Clements wrote:

> Well, it's not really his job to wait for our mail server. We typically have
> 2-3 thousand mails in the queue at any given time, so it does take a few
> minutes to run the queue. His 5 minute idle-timeout isn't enough, and we
> have increased it temporarily to get him going, but it doesn't seem like the
> correct solution.

        Sorry, guy. That's just not something postfix does a very good
job with right now. There are a couple of hacks that have been
suggested that should work:

                1. Define a separate transport for this one guy, with a
                        few dedicated smtp processes, then when he does his ETRN,
                        he should get a quick flush of his mail.

                        Drawback: This does not scale.

                2. Set up a separate machine dedicated to handling just his
                        queue, then when he connects he connects to this machine
                        and not your main postfix server, and gets a quick turn
                        around from ETRN because that machine is dedicated to him.

                        Drawback: This really doesn't scale.

        I don't know of anything else to tell you. I wish I had a better
answer, but this just isn't something postfix deals with very well,
at least not right now. 

--
   These are my opinions -- not to be taken as official Skynet policy
======================================================================
Brad Knowles, <blkskynet.be>                || Belgacom Skynet SA/NV
Systems Architect, Mail/News/FTP/Proxy Admin || Rue Colonel Bourg, 124
Phone/Fax: +32-2-706.13.11/12.49             || B-1140 Brussels
http://www.skynet.be                         || Belgium

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