And where is FOO & BAR going to get it's mail from? Locally or at the
central server? Or on both -since they have two mailboxes- ???

I think that you are making things more complicated than needed.
Have one mail-server (centrally) dealing with in- and outbound traffic.
Locally have a mail-server with some 'logic' = routing instructions. Local
mail will be dealt with locally; non-local mail will be sent to the central
server. For outbound mail you can choose; have all local servers deal with
them or have the central server to sent them outbound.
The easiest way is to give all local-sites a sub-domain-name. Then you
easily can route mail based on the sub-domain.

X-mail can solve last scenario's ... The scenario where a user has 2
mailboxes duplexed at 2 sites... I don't think that there's a mailserver
that can solve that (except for Lotus Notes or Xchange ... They can
replicate mailboxes if you want to - but check the overhead you will create
doing so. This is very bandwidth consuming compared to the central-local
scenario described above.)

Good hunting

-----Oorspronkelijk bericht-----
Van: Boniforti Flavio [mailto:[EMAIL PROTECTED]] 
Verzonden: maandag 26 augustus 2002 11:57
Aan: [EMAIL PROTECTED]
Onderwerp: [xmail] Help me decide on my mailserver!



Hello all!
I've got to implement a server for a particular situation.

I've got some remote sites connecting to my central MAIN LAN. IN this MAIN
LAN I house the mailserver of our company, which is quite large. I want to
install "local" mailservers in our remote offices, so that they don't have
to send mail directly to our central mailserver if the recipient is also in
the same office as the sender's.

Example:
User [EMAIL PROTECTED] resides in REMOTE-01
User [EMAIL PROTECTED] resides in REMOTE-01

When the user FOO sends an E-Mail to user BAR, that E-Mail has to be
delivered "locally", so it doesn't generate traffic towards my central
E-Mail server, altough their mailboxes reside on that central server. I was
thinking about some sort of "duplicate" mailboxes, one on the central server
(for incoming mail from other domains) and the *same* mailbox on their local
NT server. This one should be able to establish if that user has to be
delivered locally or that it has to be forwarded to our main mailserver.

Would Xmail do that job?

Thanks

Boniforti Flavio
Informa Srl
Via 42 Martiri, 165
28924 Verbania (VB)
Tel +39 0323 586216
Fax +39 0323 586672
http://www.co-ver.it/informa

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