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Hello Team, Do we have any recommendation from Microsoft that Autodiscover endpoint to be pointing to autodiscover.outlook.com? when we have hybrid environment?

Balaji Uppin 0 Reputation points
2024-05-22T08:48:32.9066667+00:00

We have a hybrid exchange setup with exchange 2016 on premise server, our client is saying that they got recommendation from Microsoft that Autodiscover end point to be added as autodiscovery.outlook.com in CNAME

Exchange Server
Exchange Server
A family of Microsoft client/server messaging and collaboration software.
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Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
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  1. Noah Ma-MSFT 1,615 Reputation points Microsoft Vendor
    2024-05-23T08:18:39+00:00

    Hi @Balaji Uppin ,

    Thank you for posting to Microsoft Community.

    According to your description, I have understood there are some concerns about if Autodiscover should be pointed to autodisvoer.outlook.com in your hybrid environment.

    However, I want to share the following with you.

    Autodiscover should be pointed to Exchange Online instead of on-prem when all mailboxes have been migrated to Exchange Online.

    Please replace all your Autodiscover DNS records with CNAMEs pointing at autodiscover.outlook.com and clear out the internal record by the command below in this case.

    Get-ClientAccessService | Set-ClientAccessService -AutoDiscoverServiceInternalUri $Null

    If not, you still have any mailboxes in on-prem, then you need to set the Autodiscover records ( Both externally and internally) back to your on-premises Exchange Server.

    Hope it helps, if there's anything else missed or you need help, please feel free to let me know.