Re: [Exim] SMTP with Dynamic IP-Adresses

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Author: Jim Haliburton
Date:  
To: Nigel Metheringham, 'exim-users@exim.org'
Subject: Re: [Exim] SMTP with Dynamic IP-Adresses
Nigel and list:

We have a setup that has the my clients domains hosted on a server using
exim. The remote clients have dial up access. We use a Linux box with
exim and diald to check the mail every half hour or so. We use a cron
entry that runs uucico and the diald detects the tcp request and dials an
ISP. The uucico process logs on to the domain and gets the mail. The
client side linux box delivers to the local mail server which is either a
Novell box or NT box running Mercury and Pegasus. Have 8-10 clients doing
this all day long. Some are on permanent connections with dynamic ip and
the mail check interval is around 15 minutes. One is at 5 minutes.

No code had to be written. Exim config file, cron and diald. We use ver
2.05 (Yes it is old!) at client sites and RedHat 5.0 or 5.2 linux.

Specific details available off list.
HTH
Jim H

To:                 "Pasch, Christoph" <Christoph.Pasch@???>
Copies to:          "'exim-users@???'" <exim-users@???>
Subject:            Re: [Exim] SMTP with Dynamic IP-Adresses 
From:               Nigel Metheringham <Nigel.Metheringham@???>
Date sent:          Thu, 17 Aug 2000 12:45:08 +0100


>
> Christoph.Pasch@??? said:
> > Is exim able to use (http://www.imc.org/rfc2645) RFC 2645, ON-DEMAND MAIL
> > RELAY (ODMR) ?
>
> Thats a new one on me...
> The answer is not at present, and having had a quick look I don't think it
> needs to since this can be done with external tools....
>
> On the server end, mail is delivered into some form of per user/domain hold
> spool - ie something like a maildir per user/domain. The ODMR server
> listens on port 366, takes the auth and pushes mail back by SMTP on the
> existing connection - thats a very simple process to code, especially if
> you make exim (or your MTA) save the mail into this spool in BSMTP format.
>
> On the client end you have a separate (from exim) process fire up,
> contact the mail server and auth, it then starts an exim -bs process
> and it just works.
>
> So thats 2 programs that need writing, both of which are a few 10s of lines
> of perl or a couple of hundred in C.
>
> The most complex part is the auth handling in the server end.
>
>  Nigel.
> -- 
> [ - Opinions expressed are personal and may not be shared by VData - ] [
> Nigel Metheringham                  Nigel.Metheringham@??? ] [
> Phone: +44 1423 850000                         Fax +44 1423 858866 ]

>
>
>
> --
> ## List details at http://www.exim.org/mailman/listinfo/exim-users Exim
> ## details at http://www.exim.org/ ##



James A. Haliburton
On-Site Computer Services of Halifax
Suite 100, 25 Walton Drive
Halifax, Nova Scotia
Canada     B3N 1X6
Cell/Pager  : (902)499-5250
Home/Office : (902)477-8342
e-mail      : jim@???