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Subject: Re: [Q] Virtual Domains & ETRN
From: Brad Knowles (blkskynet.be)
Date: Sat Sep 23 2000 - 18:11:41 CDT

At 12:55 AM +0200 2000/9/24, Diego Zaccariotto wrote:

> Can anyone tell me what I have to do to have postfix receiving mail for
> 30 domains and to process 22 domain by ETRN?

        Postfix will handle ETRN automatically, you don't need to do
anything special.

        Unfortunately, when the client connects and does an ETRN, this
will cause postfix to flush the entire mail queue, and not just the
mail for that one domain. This is one area of significant weakness
in the current code -- it's forcing me to keep our backup MX server
that we operate for our business customers running sendmail.

> The second problem is: If I
> receive all the mail for a domain in a mailbox how can it be retrieved
> by ETRN?

        It can't. You've defined all mail for that virtual domain to go
to the mailbox, so they need to use POP3, IMAP, or somesuch to pull
down all that mail, just like any other MUA.

> Postfix will read and resend the mail in that mailbox?

        Nope.

> or there
> is another configuration to have postfix managing a domain that will be
> retrieved via ETRN?

        Leave it in your mail queue, destined for that particular remote machine. 

--
   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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