Comment by bayindirh

There’s another great alternative called “imap-backup” [0], which I use to backup my mail accounts.

It can sync, incrementally backup and/or restore e-mail accounts.

It runs great as a container, does its job and exits. If anyone wants an ARM version, I maintain a container at [1].

[0]: https://github.com/joeyates/imap-backup

[1]: https://hub.docker.com/r/bayindirh/imap-backup