| IMAP Migrator | imapsync | |
|---|---|---|
| Setup | None, runs in the browser | Installed on a server with Perl and its modules |
| How you use it | A form, a CSV or invitation links | Command-line options per account |
| Parallel accounts | Built in, with concurrency settings | Through your own scripts |
| Resume after interruptions | Automatic, per message | Skips duplicates when run again |
| Monitoring | Live action log, reports, notifications | Terminal output and log files |
| Calendars and contacts | Over CalDAV/CardDAV | Email only (IMAP) |
| Flexibility | The common options | A very large set of fine-grained options |
When IMAP Migrator fits better
- You want to move mail quickly without running a server
- You track many accounts for colleagues or clients
- You want people to enter their own passwords
When imapsync fits better
- You prefer running everything on your own server with scripts
- You need very specific IMAP options
Questions
Does IMAP Migrator use imapsync?
No. It has its own migration engine and is not affiliated with imapsync.
Can I continue a migration I started with imapsync?
Yes. "Skip existing" recognises messages already on the target by Message-ID and does not copy them again.
Product names belong to their owners. This comparison describes general approaches and may not reflect every edition or option.