Disablesyncsliderforsharedmailbox

By default, the "Sync Slider" (often defaulting to 3 months or 1 year) applies to all mail objects during migration or profile creation. While this saves bandwidth and storage for individual user mailboxes, it is detrimental for functional mailboxes (e.g., info@ , support@ , or Archive mailboxes). These mailboxes often require a full history of correspondence to be immediately accessible to team members. Previously, admins had to manually adjust the slider via OWA or Outlook after the fact, leading to user downtime and sync delays.

Or specifically querying mailbox settings: disablesyncsliderforsharedmailbox

HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Options\General By default, the "Sync Slider" (often defaulting to

This approach should help you create a basic report on the "disablesyncsliderforsharedmailbox" setting. Adjustments might be needed based on your specific environment and tools available. Previously, admins had to manually adjust the slider

Navigate to:

DisableSyncSliderForSharedMailbox = 1 tells Outlook: “Ignore the sync slider for shared mailboxes – cache everything.”

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