Policy
Prefer the provided account email in AutoDiscover auth prompts.
If set, this policy setting governs the displayed email in auth prompts related to AutoDiscover. Default (0): Prefers the account UPN, when available. If you enable this setting, then AutoDiscover auth prompts will prefer the provided account email (can be either SMTP or UPN depending on which was configured).
Pack Microsoft Office
Category Microsoft Outlook 2016 / Account Settings / Exchange
Policy ID
72a9fb5b387e Internal name
L_PreferProvidedEmailInAutoDiscoverAuthPrompts Registry
Copy registry mappings
HKCU\software\policies\microsoft\office\16.0\outlook\autodiscover\preferprovidedemailinautodiscoverauthprompts (enabled) = 1
HKCU\software\policies\microsoft\office\16.0\outlook\autodiscover\preferprovidedemailinautodiscoverauthprompts (disabled) = 0Policy notes
If set, this policy setting governs the displayed email in auth prompts related to AutoDiscover. Default (0): Prefers the account UPN, when available. If you enable this setting, then AutoDiscover auth prompts will prefer the provided account email (can be either SMTP or UPN depending on which was configured).
Related policies
Allow Outlook Autodiscover to interact with Office Config ServiceAuthentication with Exchange ServerAutodiscover is always capable of using modern authenticationAutomatically configure profile based on Active Directory Primary SMTP addressAutomatically configure profile based on Active Directory Primary SMTP address (one-time only)Cached Exchange low bandwidth thresholdConfigure Outlook Anywhere user interface options