In Exchange 2019, to have clients connect without error from the outside, one of the URL’s that need to be updated is the Autodiscover record.

The update process is similar/the same as Exchange 2016 and can be done with a single PowerShell command. You can first check what the URL is set to by running this command:

  • Get-ClientAccessService | fl
Exchange 2019 - assign services to an ssl certificate

Now you can update the URL using this command:

  • Set-ClientAccessService -Identity <ServerName> -AutoDiscoverServiceInternalUri https://autodiscover.domainname.com/Autodiscover/Autodiscover.xml
Exchange 2019 - assign services to an ssl certificate

It completes very quickly, you can then re-run the same command as in step 1 to verify the change:

Exchange 2019 - assign services to an ssl certificate

Hope it helps.

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