Prepare for your Microsoft 365 email migration

A successful move starts with an agreed scope and a way to check the result. Keep your current email service running until the migration and mail routing have been checked together.

1. List what needs to move

Our standard Email Migration package covers 1–10 IMAP mailboxes on one domain, up to 25 GB per mailbox. IMAP copies supported email folders and messages; calendars, contacts and tasks need another method. Files, Teams, SharePoint, archives and tenant-to-tenant moves need a separate scope.

  • List mailbox addresses, approximate sizes, aliases, shared mailboxes and forwarding rules.
  • Identify calendars, contacts, local PST files, online archives and files you need to preserve.
  • Tell us your current provider and any retention rules or legal holds before work starts.

2. Confirm access without emailing passwords

An authorised contact must approve the move and arrange secure access to the source email service, Microsoft tenant and domain DNS. We agree how access will be provided during scoping. Never paste passwords, app passwords, MFA codes or recovery codes into your booking enquiry.

3. Agree the price and cutover

The standard package is NZ$299 plus NZ$79 per mailbox. It includes the necessary destination-user/domain setup, so Setup Essentials is not charged again for the same work. Licences, source-provider charges and any separately approved migration-tool fees are additional. Complex migrations are quoted before work.

  • Confirm the mailbox list, data types, exclusions and final written price.
  • Agree the work window, who can approve DNS changes and how to report urgent issues.
  • Arrange an appropriate backup/export of important source data; the migration package is not a backup service.

4. Expect a planned transition

Destination mailboxes need appropriate active licences before mail can be copied. Email routing changes can take time to reach other providers, and large mailboxes may take longer. We agree the sequence and cutover window; a zero-downtime or instant-copy guarantee is not included.

5. Check the result before retiring the old service

Use the migration summary to review unsupported, oversized, skipped or failed items. Do not cancel the old provider or delete source mail until the agreed checks and retention plan are complete.

  • Test sending and receiving with both an internal and external address.
  • Check recent and older messages, important folders, aliases and shared mailboxes in scope.
  • Reconnect supported devices, report discrepancies promptly and review temporary access.

Common questions

Will my calendar and contacts move with IMAP?

No. IMAP moves email, not calendars, contacts or tasks. Tell us about these before booking so we can quote a suitable migration method.

Can you move Google Workspace or another Microsoft tenant?

We can assess it, but API-based Google Workspace, Exchange/hybrid and tenant-to-tenant migrations are separately scoped rather than sold as the standard IMAP package.

Official references

Next steps