Move the collaboration environment without losing history and without stopping the business.
Collaboration migration is a one-time, irreversible event. Primora conducts migrations between Microsoft 365 tenants and exits from legacy suites such as Zimbra, with inventory, wave planning, a defined cutover date and validation at every stage.
Over 64,000 accounts migrated
Mailboxes, contacts, calendars and tasks moved with history preserved, in Zimbra to Microsoft 365 migrations and between Microsoft 365 tenants. Our experience comes from corporate and government environments, where there is no window to try again — the cutover has to work the first time.
When migration happens
Each scenario has a different constraint — regulatory deadline, coexistence between companies, legacy system dependency. The plan changes with the case.
Merger and acquisition
Consolidation of two or more Microsoft 365 tenants into a single organization.
Spin-off and divestiture
Separation of part of the operation into its own tenant, with a defined data scope.
Corporate restructuring
Change of legal entity, domain or corporate structure with identity reorganization.
Zimbra to Microsoft 365
Exit from Zimbra and other legacy suites to Microsoft 365, with complete history.
Environment consolidation
Unification of domains and mailboxes scattered across environments acquired over time.
Compliance requirement
Migration with an auditable trail and retention aligned with the organization’s policy.
How we run it
A method that treats migration as a project with a date, not as an ongoing operation.
When no ready-made path exists, we build one
Source platform analysis
We assess the legacy suite, its formats and the APIs available for extraction.
Solution development
If no migration path is available, we develop the tool that extracts and transports the data.
Execution at scale
Batch migration with monitoring, controlled retry and a reconciliation report.
"What you hire in a migration is the absence of surprises."
What we deliver
Have a collaboration migration ahead?
Talk to a Primora specialist and get your scenario sized before deciding on the path.