Exchange between more office site

[Pupo]

Hi
I need to implement exchange between three office site, vpn connected, this
office's have three separate AD domain, but must have a unique mail domain
i.e. @mydomain.com .
I'm looking for documentation, link or other material about do it. I'm not
sure if , the best way is using three different exchange on every site or
only one.
Any idea, suggest are wellcomed
Tia Danilo

[Louis Vitiello Jr.]

Greetings,

If I understand your network configuration you will have 3 sites, linked by
VPN with an AD domain per site. If these AD domains are hosted by a root AD
server then you can just impliment one Exchange server on the network. If
these are three seperate AD servers and none of them communicating to each
other, then you need an alternate configuration for your Exchange server.

One solution would be to configure youe Exchange server as a hosted server.
Therefore you can host multiple domains off one server and each office would
get the experience that they are on seperate servers. For connectivity
purposes you might want to consider RDC over HTTPs, then you might not need
the VPN (depending on what you planned on using it for, but with three
seperate domains and no intercommunication - what are you using it for?)

For how-to on RPC please visit
http://www.microsoft.com/technet/prodtechnol/exchange/guides/E2k3RPCHTTPDep/92f1a371-86dc-4839-9732-5a85525a0874.mspx?mfr=true

Hope this helps,

--
Louis Vitiello Jr.
MCSE +S, MCSA, MCP, A+/N+
ERCP XP Pro / Net Concepts

"Pupo" <uncles...@libero.it> wrote in message
news:eH4uo3i5...@TK2MSFTNGP04.phx.gbl...

[Pupo]

We thing to do a trust between these domains, so they can comunicate.
So we want use a unique email domain for all three domains.

"Louis Vitiello Jr." <louv...@hotmail.com> wrote in message
news:%23Yr$FBj5GH...@TK2MSFTNGP06.phx.gbl...

[skip]

If all the domains are part of the SAME AD FOREST then install Exchange into
the existing Exchagne org. You can use RPC over HTTPS but i would only use it
for remote users, users who are on the connected VPN should connect directly
to your backend exchange servers. The tricky part with this is not so much
exchange but the the encryption settings you use on your site to site VPN's
if the encryption is set to high this can cause problems with AD
synchronization and connecting to the backend exchange server by the clients.