Policy

PST Null Data on Delete

This policy setting allows you to force Outlook to fully nullify deleted data in users’ Personal Folder files (.pst) at the time that the data is deleted. If you enable this policy setting, data is immediately nullified in PST files when deleted. If you disable or do not configure this policy setting, data remains in PST files until it is purged or overwritten by the user.

Policy
Pack Microsoft Office
Category Microsoft Outlook 2016 / Miscellaneous / PST Settings
Policy ID 14c8aaf7ad3c
Internal name L_PSTNullFreeOnDelete

Registry

Copy registry mappings

HKCU\software\policies\microsoft\office\16.0\outlook\pst\pstnullfreeondelete (enabled) = 1
HKCU\software\policies\microsoft\office\16.0\outlook\pst\pstnullfreeondelete (disabled) = 0

Policy notes

This policy setting allows you to force Outlook to fully nullify deleted data in users’ Personal Folder files (.pst) at the time that the data is deleted. If you enable this policy setting, data is immediately nullified in PST files when deleted. If you disable or do not configure this policy setting, data remains in PST files until it is purged or overwritten by the user.

Related policies

Default location for OST filesDefault location for PST filesDo not send meeting forward notificationsLarge PST: Absolute maximum sizeLarge PST: Size to disable adding new contentLegacy PST: Absolute maximum sizeLegacy PST: Size to disable adding new content