Policy

Prevent adding non-default Exchange accounts

This policy allows you to prevent users from adding non-default Exchange accounts to existing Outlook profiles. If you enable this policy setting, you will prevent users from adding non-default Exchange accounts via the Add New E-mail Account wizard. If you disable or do not configure this policy setting, users can add non-default Exchange accounts to existing Outlook profiles.

Policy
Pack Microsoft Office
Category Microsoft Outlook 2016 / Account Settings / Exchange
Policy ID d5f342fefc3d
Internal name L_PreventNondefaultExchangeAccounts

Registry

Copy registry mappings

HKCU\software\policies\microsoft\exchange\disablemultipleexchange (enabled) = 1
HKCU\software\policies\microsoft\exchange\disablemultipleexchange (disabled) = 0

Policy notes

This policy allows you to prevent users from adding non-default Exchange accounts to existing Outlook profiles. If you enable this policy setting, you will prevent users from adding non-default Exchange accounts via the Add New E-mail Account wizard. If you disable or do not configure this policy setting, users can add non-default Exchange accounts to existing Outlook profiles.

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