I would use something like OfflineIMAP to sync from an external IMAP server to your own Dovecot instance, assuming you want the local copy to be kept in sync (e

I would use something like OfflineIMAP to sync from an external IMAP server to your own Dovecot instance, assuming you want the local copy to be kept in sync (e.g., read status should be copied to the local copy as it changes, etc).