Decommissioning an old 2011 SBS server

JB306yxe 256 Reputation points
2021-04-28T22:33:19.847+00:00

Hi there, I have a site that I am slowly phasing out their 2011 SBS server. Everything has been moved off it, I have two new 2019 AD servers installed in the domain. About 2 years ago, we migrated over to 365 so with the Azure AD Sync program on our new DC, all passwords and such are synchronized.

I want to remove the SBS 2011 server entirely. I have some questions regarding this old server.

  1. What are the repercussions of removing that Exchange server (part of SBS 2011)?
  2. Will I lose functionality with the Azure link between AD and 365?
Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
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Accepted answer
  1. KyleXu-MSFT 26,206 Reputation points
    2021-04-29T01:25:22+00:00

    @JB306yxe

    Do you using a hybrid organization?

    In a hybrid organization, if you want to uninstall Exchange serer, you also need to uninstall AAD connect. If you want to keep AD sync, you need to remain at least one Exchange on-premises server.

    For more detailed information, you can have a look about this article(I think it is same to SBS server): How and when to decommission your on-premises Exchange servers in a hybrid deployment

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