Is your feature request related to a problem? Full mailbox sync fetches all emails. For mailboxes with 100k+ emails, initial sync takes hours. Re-sync also slow.
Describe the solution you would like:
- Track UIDVALIDITY and highest UID synced
- Fetch only new emails since last sync
- Use IMAP CONDSTORE extension if available
- Handle UIDVALIDITY changes (full resync)
- Show sync progress with percentage
- Pause/resume sync capability
- Background sync without blocking UI
Describe alternatives you have considered: Full sync always (current - very slow). Incremental dramatically faster.
Additional context:
- Files: fetcher/fetcher.go, config/cache.go
- IMAP CONDSTORE and QRESYNC extensions
- Persistent sync state storage
- Handle edge cases (deleted messages, moved messages)
- Complexity: Very High - stateful sync protocol
Is your feature request related to a problem? Full mailbox sync fetches all emails. For mailboxes with 100k+ emails, initial sync takes hours. Re-sync also slow.
Describe the solution you would like:
Describe alternatives you have considered: Full sync always (current - very slow). Incremental dramatically faster.
Additional context: