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Coexistence between Exchange forests (without trusts…) -- Part 1: Conceptual

Imagine a scenario where you acquire a company in a different country and they don’t want to be absorb in your IT environment (because they don’t like it, have regulatory requirements that can’t be met or are just trying to be difficult) but you do need some fashion of coexistence between the two Exchange organizations… After all, you’re part of the same company now and people should be able to find them in the GAL and do free/busy look ups!

This is the scenario I recently got presented. So I went to work in my lab and documented everything…

Conceptual

image

Using the GALSync component from MIM 2016 (Licensed through windows server starting April 1st, 2015) we can synchronize the user objects from each domain in to contact objects and have them added to each Exchange global address list.

Scoped send connectors allow the two mail environments to send email directly to each other, and setting up internal relay domains allows email to stay internal, rather than going out over the internet.Group based delivery for the ‘toasterlabs.org’ domain will take care of the inbound internet mail flow.

 

I’m going to split this up in to a series and gradually post them, so as to not overwhelm you (and keep you coming back for more Smile. In addition it give me time to prepare for my next subject(s)!)

Coexistence between Exchange forests (without trusts…)  -- Part 1: Conceptual
Coexistence between Exchange forests (without trusts…)  -- Part 2: DNS Forwarders
Coexistence between Exchange forests (without trusts…)  -- Part 3: Preparing the UK Exchange 2007 environment
Coexistence between Exchange forests (without trusts…)  -- Part 4: Preparing the US Exchange 2010 environment
Coexistence between Exchange forests (without trusts…)  -- Part 5: Preparing the GALSync Server
Coexistence between Exchange forests (without trusts…)  -- Part 6: Installing the MIM 2016 Synchronization Service (GALSync)
Coexistence between Exchange forests (without trusts…)  -- Part 7: Creating Synchronization Agents
Coexistence between Exchange forests (without trusts…)  -- Part 8: Enabling Provisioning
Coexistence between Exchange forests (without trusts…)  -- Part 9: Synchronization!
Coexistence between Exchange forests (without trusts…)  -- Part 10: Configuring Free/Busy
Coexistence between Exchange forests (without trusts…)  -- Part 11: References

Print | posted on Monday, October 19, 2015 3:12 PM | Filed Under [ Exchange Build Guides Deployment ]

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