[Mailman-Developers] Mail Architecture Issue

[Tony.Oger at devoteam.com]

Hi and thanx to help me if you can.

Here is my architecture Relay SMTP Architecture.

                                     | INTERNET |
                                          |
   ------------------------------------| FW |----
           |                              |
        -------                           |
        | LVS |                           |
        -------                           |
           |                              |
     ---------------                      |
     |             |                      |
   ---------    ---------                 |--------------
   | Relay |    | Relay |                        |
   | SMTP  |    | SMTP  |                      ------------
   ---------    ---------                      | Lotus    |
                                               | internal |
                                               | mail     |
                                               ------------

The LVS is a load-balancer that load-balance incoming ou outgoing SMTP
traffic between each SMTP Relay Real Servers.
system on both Relay SMTP : Exim 4 under linux

There are routers and directors configured on those MX Relay Servers
to relay Mail to my internal Mail Server (back office where are all the
mailboxes) for all the domains it owns.
 (Winnt + Lotus Domino)

I would like to install a Mailing List software because the one in Lotus
Domino
isn't very clean and easy to use. What i would like to do is to install for
example  mailman config which can dialog with the Domino LDAP Server
to get all users list in the domains.
My Problem is that i do not know where to install the mailman framework.

Actually, it would be a bad idea to install it on SMTP Relay Server, i
think, because, the database containing users list must be shared between
those Servers and all configuration files need to be install as the
software (as the aliases files) on each server. (Bad idea regarding
administration).

Do you have any architecture issue ? My intention was to create the mailing
list in an other domain or sub-domains  and on my relay smtp server just
add
a director to relay message to @ml.domain.com to another internal server
running
exim or postfix and mailman.

In this case only one linux server has to be installed, and message
addressed to the mailing lists will be forwarded to this mail server.

What do you think of this architecture and your ideas to prevent isntalling
mailman on each smtp relay server and as i cannot install it on the
internal mail server which runs lotus ?

Thanx
Tony