Mail, calendars & contacts
Every message where it belongs, with its dates.
- Full folder tree (or label set), including nested folders and archive mailboxes
- Read state, flags, categories and importance preserved; drafts stay drafts
- Original sent and received dates — never "migrated today"
- Calendars with recurrence, exceptions, reminders and free/busy; attendees kept as text so nobody gets re-invited
- Contact folders and contact groups; People labels in Google
- Signatures, out-of-office and mailbox rules where the platform allows; listed where it does not
- Between platforms: folders ↔ labels, categories ↔ labels, recurrence ↔ RRULE, contact and event fields mapped one by one
- From an on-premises Exchange Server over EWS (mailboxes and public folders); from or to Zoho Mail over IMAP, CardDAV and CalDAV with per-mailbox app passwords