If the client is running exchange version 4, then it will have to be
done on your side. I'm making an assumption that the customers paying
for store and forward mail services from your site have a static IP
address. (If you figured out a way to do this w/out one, please fill me
in, it would be really helpful to us. ;) Anyway, what I did for the
customers running exchange server 4 was to set up a perl script to wake
up and ping the addresses of the relevant companies. If the ping was
successful, it called sendmail and forced the queue for their domain.
This way, they didn't have to stay connected for more than 5 minutes and
we got to keep sendmail on a 30 minute cycle.
If the client has exchange server ver 5, things are much easier. With
Service Pack 1 some modifications were made to the IMC dialup page.
There is now a button there called Mail Retrieval. Under this button
you can define it to use ETRN to retrieve the mail or to use a custom
command. Since you are using sendmail, ETRN should be what you want.
Once they define their dialup connection to use this whenever they
connect Exchange server will make a connection to your smtp prot (25)
and send the ETRN command. Sendmail recognizes that and starts the
queue for that site and sends all the stored mail.
If you have any other questions on this (or if I wasn't very clear, a
common fault of mine) please let me know and I'll do the best I can to
help you out.
From: Douglas Warren [mailto:firstname.lastname@example.org]
Sent: Thursday, December 18, 1997 10:58 AM
Subject: Exchange Picking Up Email
I'm new to this list, as we have only brought our first NT server online
about two weeks ago, and thought I'd say hi before asking a my first
question. (HI!) Now that that's out of the way, we have two companies
that recently signed up with us that wish to use an NT server running
Exchange to dialup and exchange mail. Now, at this end we use sendmail,
and it tries to poll all hosts that it has mail for once every 30
so for them to receive email via SMTP, they would need to be connected
for approx. 30-35 minutes at a time to be sure they received everything
that was bound for them. This is fairly unacceptable. What we would
do normally is to place all email for the domain in a mail box where
the user could retreieve it via POP3 or IMAP using a program like
or something similiar. Failing that, we would have them run UUCP and
send/receive mail that way. What I'm looking is a way to accomplish
under NT, either with Exchange, or with a low cost product that can
grab the mail from our server, and then talk SMTP to Exchange and have
routed and delivered over their internal networks properly. Does anyone
have any suggestions for this?
---|Douglas ``Wildcat'' Warren |Email: email@example.com| Jura gurtbireazrag|Network/Security Consultant|Phone: (516) 543-0234 | bhgynjfPelcgbtencul,|President of SBCS a chapter| Fax: (516) 543-0274 | bayl pevzvanyfjvyy|of the ACM. | PGP: finger dwarren | unir cevinpl
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