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Horcrux Help

Reconnect an existing backup to Horcrux

If you still have a Backup Location with saved mail, Horcrux can use it to rebuild the account’s local catalog. Start with the email account that created the backup.

Choose the existing Backup Location

  1. During account setup, choose your existing Backup Location. For an account already in Horcrux, open Manage Account → Backup Locations → Add Backup Location.
  2. Select a recent location or enter the same local folder, SFTP location, or Amazon S3 location. See how to choose a Backup Location for the connection steps.
  3. Let Horcrux inspect the location. It looks for a completed revision belonging to this exact account and checks the backup records. Other accounts’ backups at the location stay untouched.

If macOS has revoked access to the working Library on your Mac, use Reconnect in Horcrux Library settings.

What happens to local history

When the local catalog is empty, Horcrux rebuilds it from the newest valid matching location. When the catalog already has history, a newer verified history for the same account can replace it in one operation. An older location is brought up to date from the current history.

Horcrux preserves pending catalog work in the Library. Once the backup is available, open it in Browse to inspect your mailboxes.

If Horcrux cannot attach the backup

If Horcrux finds files for the account but cannot verify a complete, compatible revision, it refuses to attach that location. Choose another complete Backup Location or repair the affected copy before trying again.