Rated 4 out of 5 stars

Please add an option that allows to add leaf folders (the folders that actually contain messages, not those containing further subfolders) only.

Otherwise, one get's tons of "Mailbox doesn't exist" errors on some IMAP servers (i.e. dovecot).

Hi, thanks for your input.
Could you please open an issue on github ?

It'll be easier to continue the discussion there ;-)