I was earlier looking for a ETRN solution with qmail, so I could queue mail for dialup 
customers. I came up short. Since that I've seen a few ETRN patches for qmail, but 
I've not tried them out. I ended up with a solution where a pop-client connected to a 
pop3 dummy account (always empty), and with the correct username and password 
triggered a smtp-feed from our mailserver.

You can use a standard POP-client, or write a telnet script that is triggered from 
Exchange.

If the customers network is behind a router that is using NAT and private network 
addresses, the router has to forward all incoming traffic on port 25 to the internal 
mailserver. Not all routers is supporting this function, that is called PAT on Cisco 
7xx routers.

Most of our customers is using this solution, and only a few where the mailserver have 
it's own isdn card/connection.

Highly recommended solution...... http://www.qmail.org/turnmail
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IDG New Media     Einar Bordewich
System Manager   Phone: +47 2205 3034
E-Mail:  [EMAIL PROTECTED]
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----- Original Message ----- 
From: Ruben van der Leij <[EMAIL PROTECTED]>
To: Olivier M. <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Sunday, September 19, 1999 10:25 PM
Subject: Re: Main server = qmail, destination = ms exchange


On Sun, Sep 19, 1999 at 07:43:29PM +0200, Olivier M. wrote:

> Sending the mail outside isn't a problem (relaying for an IP class). 
> But how can I tell the qmail server that the NT box is currently 
> online and waiting for an smtp feed ? I guess I need a kind of trigger
> that will start a maildirsmtp command. Is it the right way ? 

You have a choice of two mechanisms. The first is the ETRN-command. This is
only supported on Exchange 5.5 SP1 and later. For older servers you can use
a custom trigger, but I'm uncertain about how and what.

Start with searching support.microsoft.com for 'Exchange ETRN'. This will
point you to the right documents for the Exchange-side of the story..

-- 
Ruben

--

Eat more memory!


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