asked on 1/18/2016

Decommissioning Exchange 2010 after Cutover Migration

Organization has DirSync and mailboxes only in the cloud.
The current Exchange 2010 is not doing anything (and has been shutdown for 2 weeks to verify)

My question is, If I uninstall Exchange 2010 with Uninstall from Add/Remove programs, will this effect any DirSynced attributes and cause a problem?

Exchange Microsoft 365 Active Directory Azure Powershell

Last Comment

Damien Kay

1/19/2016

Will Szymkowski

1/18/2016

If the mailboxes are all located in the Cloud then you will not have any issues simply removing the Exchange server from your on-prem environment.

Will.

K B

1/18/2016

ASKER

Thanks Will! It does not modify any AD user attributes when you uninstall it?

Vasil Michev (MVP)

1/18/2016

Having dirsync means you need to have at least one Exchange box is you want to stay in supported scenario. Make sure you understand the details as explained here: https://technet.microsoft.com/en-us/library/dn931280(v=exchg.150).aspx

If you are fine with managing Exchange related attributes via ADUC/ADSI Edit/PowerShell/whatever and if you are fine with risking Microsoft denying you support in some situations, then yes, all you need to do is uninstall via Control panel or by running setup.exe.

K B

1/18/2016

ASKER

Hey Vasil, thanks for the information! ... but this is not a hybrid deployment. that article seems geared for a hybrid?

Will Szymkowski

1/18/2016

Ahh.. i just re-read the question and when you have Exchange in a Hybrid scenario and you are using DireSync most of the arrtibutes that you sync to the cloud can no longer be managed. Depending on how your current environment is you might not want to decommission the on-prem Exchange envrionmnent for added functionaility. See the below link for additional details on when/when not to decommisison on-prem Exchange.

https://technet.microsoft.com/en-us/library/dn931280(v=exchg.150).aspx

my apologies

Will

K B

1/18/2016

ASKER

I don't think you misread my question... now you have ME rereading my question LOL.

So, nope this is NOT a hybrid... it was just a simply cutover migration that included DirSync.

They are not huge shop so they have been fine for a couple months using AttributeEditor tab to admin/create users.

So Will, is it fine to uninstall without worrying about effecting any AD attributes for users (then having those changes DirSync into the cloud?) Things like proxyaddresses etc...?

Thanks again!

SOLUTION

Vasil Michev (MVP)

1/18/2016

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ASKER CERTIFIED SOLUTION

Will Szymkowski

1/18/2016

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K B

1/18/2016

ASKER

Thank you both. My original question was answered by Will and I had NO idea that support-ability was in question - So, thank you also Vasil.
I have called support many times with no problem but can you imagine that one time Microsoft decides to deny you support when you most need it?!

Damien Kay

1/19/2016

Another option, depending on your hardware availability, is the Free Exchange 2013 Hybrid license.
https://support.microsoft.com/en-us/kb/2939261

A great example would be a relatively small Virtual Server running this free version of Exchange 2013. This would allow you to maintain local management of the Exchange Attributes in a supported environment.
I am assuming there will be a similar license with Exchange 2016 at some point...