Remove server from Exchange 2010 Organization

illfusion82
illfusion82 used Ask the Experts™
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We have an Exchange 2010 server that we would like to remove from the organization. What are the steps to remove the server from the Exchange organization? Does my account need to be a member of the Enterprise admin group?
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Seth SimmonsSr. Systems Administrator

Commented:
need more details about the environment
was it migrated to office 365? all mailboxes off the server and exchange uninstalled?

domain admin is sufficient to remove the computer account from the domain; enterprise admin would only be needed if, for example, upgrading exchange which would require a schema update
timgreen7077Exchange Engineer
Distinguished Expert 2018
Commented:
Basically all you do it is make sure that any mounted DB on that servers has the mailboxes moved to a DB on a different server, if the servers is a DAG member, remove the server from the DAG and also dismount and remove the DBs from that server. Then just uninstall the server in the add/remove programs area. that's it. to be honest though a bit more info about the org helps but this is pretty much all for the most part.

Author

Commented:
Thanks! The environment is Exchange 2010. We are just removing a server from the environment.
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timgreen7077Exchange Engineer
Distinguished Expert 2018

Commented:
well once DBs are removed you can uninstall via add/remove programs. that will cleanly and completely remove it from the org.

Author

Commented:
Thanks Timgreen. Seth mentioned a domain admin account is sufficient enough to uninstall Exchange 2010. We have a user right assignment in place to prevent domain admins and enterprise admins from logging into member servers. Would an account work that is a member of the local administrators group of the exchange server?
EE Solution Guide - Technical Dept Head
Most Valuable Expert 2017
Commented:
As commented by Timgreen you will have to move your mailboxes to a database on a different server.
You can use this article to check how many mailboxes in the server.
https://www.experts-exchange.com/articles/31850/Count-Mailboxes-in-your-Exchange-Organization.html?headerLink=workspace_article
You can use this article to move the existing mailboxes to a different mailboxdatabase on a different server including arbitraton/system mailboxes.
 https://www.experts-exchange.com/articles/31741/Move-mailboxes-in-bulk-or-one-by-one-to-another-database-in-Exchange-2010-2013-2016.html?headerLink=workspace_article
Finally shutdown the server for a week atleast so you will know if this server is used somewhere like printers,scanners etc.
Then decmossion the server from add/Remove programs after all services are moved to the new server.
You need Schema Admin, Enterprise Admin, Domain admin permissions to Uninstall Exchange 2010 server. You need to remove all DBs to uninstall.
https://docs.microsoft.com/en-us/Exchange/plan-and-deploy/prepare-ad-and-domains?view=exchserver-2019.

Thanks
MAS
MASEE Solution Guide - Technical Dept Head
Most Valuable Expert 2017

Commented:
This will remove all your mailboxdatabases.
Get-Mailboxdatabase | Remove-MailboxDatabase

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Author

Commented:
So just to be sure, MAS mentions The account needs to be a member of Enterprise admins, scheme admins, and domain admins to uninstall exchange, but Seth mentions domain admins is sufficient enough to uninstall exchange 2010. Which is correct?
MASEE Solution Guide - Technical Dept Head
Most Valuable Expert 2017
Commented:
Apologize for the mistake.  Domain-Admin enough for an uninstall. There is no change in schema when you uninstall.

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