How to use it
- Enter the organisation and migration basics.
- Generate a phased checklist and download the CSV template.
- Validate the completed mapping before using an administrator migration service.
Business & admin
Email migration planner
Prepare a mailbox-migration plan, download a clean mapping template and check a CSV for common address or duplicate errors.
✓ No signup✓ No London Community IT branding✓ Processed on this device
Prepare before admin work
Plan a safer mailbox migration
This tool does not access any mailbox.It creates and checks planning files on this device. A real migration still requires authorised administrator work.
Check a completed mapping CSV
We check the required columns, basic email format and duplicate destination addresses. The file stays here.
What it accepts
Planning details and an optional CSV with old_email, new_email, display_name and licence columns.
Important limits
- This planning tool does not connect to Microsoft 365 or move any email.
- Administrator access, licensing, backups and a tested migration method are still required.
- The final plan must be checked against the organisation’s actual tenant and legal-retention needs.
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