Cf. rcarmo/imapbackup: A Python script for incremental backups of IMAP mailboxes
"Back up your Mac or Windows PC. Super-easy. You keep control. Encrypted backup to your Amazon Drive, AWS, Dropbox, Google Drive, Google Cloud Storage, or OneDrive account"
"Windows utility that mounts a shadow copy of the disk at a drive letter and then spawns an arbitrary command."
"SyncFolders, an easy tool to synchronize or backup your files and folders. ...
duply simplifies running duplicity with cron or on command line by:
A list of questions/documentation/reports that any good service provider should have readily available!