Integrate Exchange 2003 into multiple separate domains

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Eric Daly - 12 Oct 2005 15:57 GMT

I have a customer with 5 hotels which all have independant Windows server
2003 domains. They are looking at moving from local mdaemon boxes to
installing Exchange 2003 servers in each site. They want to have all users
from all hotels listed under the Global Address List. Is it possible to setup
an Exchange 2003 Org using 5 separate domains or do I need to setup trusts
etc for this to work?

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Al Mulnick - 12 Oct 2005 19:07 GMT

Wow. The domains are not the issue, the forest boundaries are. Exchange
expects to exist in a single forest. If that's not the case here, you'll
need to drill down into exactly what the requirements are. Do they just
want a shared GAL? If so, then you have some options. Do they need to
share public folder resources? Administration? That would indicate a
different solution altogether.

Al

>I have a customer with 5 hotels which all have independant Windows server
> 2003 domains. They are looking at moving from local mdaemon boxes to
[quoted text clipped - 3 lines]
> an Exchange 2003 Org using 5 separate domains or do I need to setup trusts
> etc for this to work?

Reply to this Message

Eric Daly - 13 Oct 2005 08:51 GMT

The only requirement is GAL. As the hotels operate independently they do not
require access to each others public folders etc..

> Wow. The domains are not the issue, the forest boundaries are. Exchange
> expects to exist in a single forest. If that's not the case here, you'll
[quoted text clipped - 11 lines]
> > an Exchange 2003 Org using 5 separate domains or do I need to setup trusts
> > etc for this to work?

Reply to this Message

Al Mulnick - 13 Oct 2005 12:57 GMT

Then you want a common GAL across several ORGs. The tools to look into that
I'm aware of, would be MIIS (IIFP would probably be what you're after;
easier and cheaper to work with) or SimpleSync. Pretty much any
metadirectory tools would be fine though.

There should still be some information about multiple forest implementation
deployments at http://www.microsoft.com/exchange/library

Al

> The only requirement is GAL. As the hotels operate independently they do
> not
[quoted text clipped - 18 lines]
>> > trusts
>> > etc for this to work?

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