Enable Online Archive in Office 365

Quick rundown on managing Office 365’s “In-Place Archive” (extra mailbox storage). It’s often included but disabled by default.

How-To with Exchange Admin Center (EAC):

• Login to Office 365 Admin -> Exchange.
• Go to Recipients -> Mailboxes.
• Select a mailbox -> Others tab -> Manage mailbox archive.
• Toggle “Enable” to On/Off and Save. (One mailbox at a time!)
• Caution: Empty archive before disabling to avoid data loss.

PowerShell:

• Connect to Exchange Online PowerShell.
• Enable: Enable-Mailbox -Identity user@domain.com -Archive (single user) or Get-Mailbox -Filter {ArchiveStatus -Eq "None" -AND RecipientTypeDetails -eq "UserMailbox"} | Enable-Mailbox -Archive (all users without archive).
• Disable: Disable-Mailbox -Identity user@domain.com -Archive.

Manual Method Downsides: Time-consuming, requires technical skills.