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kirkz
Copper Contributor
Nov 13, 2025
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AuthServer in Exchange Online

The result of Get-AuthServer is different between on-prem and EXO. The list of objects from EXO get-authserver includes some "IssuerIdentifiers" that include a "{tenantid}" pattern. Was this supposed to be expanded by a script, or by HCW? (HCW has never run to completion without exceptions.) There seems to be no documentation about this: no list of default entries, no documentation on the expected form, few mentions of the use of Set-AuthServer/New-AuthServer, and the options don't match the properties.

  • Thank you for this! I have seen this document, it confirms the Exchange Server side of the issue.

    It turns out I got the answer I needed in a different way:

    I asked Copilot, and it hallucinated so thoroughly (and confidently) that I was able to figure out a trustworthy answer by implication. The Exchange Online Authorization Servers have a "{tenantid}" identifier in them by design, I think that's the way they appear for all tenants. I think I remember reading that this was possible, but some time ago.

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