Exchange Admin Center migration (cutover / staged / IMAP)
Microsoft
Included
Warm - seeded online, short cutover window
Agentless
Smb estates
Exchange
What it is good at
Zero-cost route for estates under roughly 150 mailboxes. Cutover migration moves everything in one pass over a weekend.
Where it falls down
Cutover is practically capped around 150 mailboxes and forces one big-bang weekend. IMAP migration brings mail only - no calendar, contacts or tasks.
Capabilities
- Delta / incremental passes
Cost and licensing
- Cost category
- Included — No extra charge if you already hold the platform licence.
- Indicative price
- Included with Microsoft 365
- Licence model
- Included with the Microsoft 365 subscription.
- How to license it
- Use the migration section of the Exchange admin centre. No cost. Target mailboxes need M365 licences.
- Lifecycle
- Current
- Vendor page
- https://learn.microsoft.com/exchange/mailbox-migration/mailbox-migration
Pricing and licensing last reviewed 2026-09-18. Indicative only - confirm with the vendor.
Supported sources
- Any platform
Supported targets
- Any platform
Scenarios it covers
- Exchange on-premises to Exchange Online (Microsoft 365)
- IMAP / POP / hosted mail to Microsoft 365
- Google Workspace to Microsoft 365