Restow documentation

Current version: 0.4.7 beta, released 29 October 2026. Release notes · Status and roadmap · All releases on GitHub

For end usersFind older mail and files in your own mailbox or OneDrive and bring them back, next to what is already there.Start hereFor administratorsInstall Restow, connect Microsoft 365 or IMAP, set up schedules and repositories, and prove that restores work.Install and run

Topics

Setup wizardSetup token, operator notice, public URL, first admin, mail delivery, admin recovery.Connecting sourcesMicrosoft 365 app registration and IMAP accounts.Backup and restoreRestore single items, folders or whole accounts, never over the original.Endpoint backupBack up servers and clients with an append-only agent, on Linux and macOS.File sharesBack up SMB and NFS file shares without an agent, with their permissions.Immutable backupsS3 Object Lock per repository, a deletion delay for directories.Ransomware detectionSigns of ransomware in every new restore point, and a retention hold.Mail import and exportBring in EML, MSG and MBOX files; export mail as EML or MBOX.SchedulesWhen backups, restore checks and storage checks run.Recovery readinessHow Restow proves a backup can actually be restored.Audit logWho read or restored what, when, for whom.Multi-tenancyTenants, delegated administrators, provider view.Integration APIREST API and webhooks for RMM, PSA and ticketing.License and editionsCommunity, Business and Service Provider.ArchivingJournaling, hash chain, retention and legal hold, since 0.1.0.Backup vs. archiveWhat each one is for, and why you may need both.GoBD and evidenceWhat German GoBD requirements ask of an archive.UpdatesUpdate check, optional updater, runs in progress, migrations, rollback.DatabaseWhere the database lives, low disk space, moving it to another disk.TroubleshootingCommon problems and where to look first.Failure explanationsWhat happened, why, and what to do for each failure.Status and roadmapWhat works today and what is still being built.

What it looks like

demo.restowbackup.com

A real screenshot of the public demo with synthetic data.

Real screenshots from the public demo, synthetic data.

Restore explorer

Recovery readiness

Audit log

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