Set up an AT or batch task to wake up every half an hour or so and run some
sort of macro that does:

start:
Telnet yourmailserver.com 25
ETRN @hisdomain.com
quit
exit
sleep 30 minutes
goto start

That is more of a conceptual than it is a working model.  I use a small VB
executable using "send keys" for one client.  Not so elegant, but has been
running without a hitch for near a year and a half now.  Hope that helps,
-V
----- Original Message -----
From: Len Conrad <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, August 23, 1999 10:19 AM
Subject: [IMail Forum] ERTN by Exchange over leased line?


> Our client connects to us via a leased line.  He has Exchange behind NAT,
> so Imail forwarding can't reach it by MX connection.
>
> We'd like his Exhange to us ESTMP and ETRN to come pick up the mail.  We
> can't see how to configure Exchange to this. Over dialup lines, yes, but
> over a
> leased line, no.
>
> Exchange forwards mail to our Imail just fine.  Imail accepts it as being
> from a trusted ip address and relays it on.
>
> Imail is receiving and spooling mail from Internet for the client's domain
> and trying to forward it to the trusted ip address (outside ip on his NAT
> box). cool
>
> The pb is Exchange is not ETRNing to pick up its waiting mail.
>
> Suggestions?
>
> Len
>
>
> Please visit http://www.ipswitch.com/support/mailing-lists.html
> to be removed from this list.
>

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