Disablesyncsliderforsharedmailbox (VERIFIED × 2025)
For administrators, this can be managed via the Microsoft 365 Administrative Templates .
The first time this is enabled, Outlook will undergo a massive download process that can saturate network bandwidth. Alternative Solutions disablesyncsliderforsharedmailbox
I have provided two versions: one formatted as a (suitable for IT admins), and a shorter version suitable for a Microsoft Feedback Portal (UserVoice) or internal change request. For administrators, this can be managed via the
Note: The DisableSyncSliderForSharedMailbox setting is primarily a . Mac users should rely on the built-in "Download all messages" option. disablesyncsliderforsharedmailbox