Policy
Disable Reading Pane Compose
This policy setting allows you to control whether user’s responses to emails are composed inline on the reading pane or in a new window. If you enable this policy setting, responses to emails are composed in new windows. If you disable or do not configure this policy setting, responses to emails are composed inline in the reading pane.
Pack Microsoft Office
Category Microsoft Outlook 2016 / Outlook Options / Mail / Compose Messages
Policy ID
1f1e3fd364d6 Internal name
L_DisableReadingPaneCompose Registry
Copy registry mappings
HKCU\software\policies\microsoft\office\16.0\outlook\message\disablereadingpanecompose (enabled) = 1
HKCU\software\policies\microsoft\office\16.0\outlook\message\disablereadingpanecompose (disabled) = 0Policy notes
This policy setting allows you to control whether user’s responses to emails are composed inline on the reading pane or in a new window. If you enable this policy setting, responses to emails are composed in new windows. If you disable or do not configure this policy setting, responses to emails are composed inline in the reading pane.