Features
What MailVault does with your mail
Collect it from the server, bring in older stores, prove that nothing changed, keep the retention periods, find it again and hand it over. One page per task, each saying what the software does and what it does not.
CaptureIMAP archivingMicrosoft 365, Outlook.com, Gmail and any IMAP mailbox. Read-only, every hour or every night if you like, without a window open.More on collection →
Bring inPST, OLM, Apple Mail and ThunderbirdRead older stores directly on the Mac, without Outlook and without Windows, and say honestly what Outlook left of them.More on importing →
ProveAudit trail and control reportHash chain, Ed25519 seals, time-stamps from an authority, and a report a person dates and signs.More on the proof →
KeepRetention, holds and erasureRetention classes, legal holds and GDPR erasure that leaves the integrity proof intact. Nothing is ever deleted automatically.More on retention →
FindFull-text searchAcross subjects, text and attachments, with fields, date limits and AND, OR and NOT. Kept as a smart folder.More on search →
Hand overExport and portable archivePDF with the attachments embedded, EML, mbox, Maildir, or an archive that runs in any browser without MailVault. With a digest for every message.More on export →
At a glance
| Platform | macOS 14 or later, Apple silicon and Intel |
|---|---|
| Mailboxes | Microsoft 365, Outlook.com, Gmail and Google Workspace (with an app password), any IMAP account |
| Import | Outlook PST, OST and MSG, Outlook for Mac OLM, Apple Mail, Thunderbird, mbox, Maildir, MH, EML |
| Proof | SHA-256 per message, hash-chained journal, Ed25519 seals, RFC 3161 time-stamps, control report as PDF |
| Read-only copies | Read, search, verify, print and export, including on a locked disk or in a read-only disk image |
| Retention | Classes with their own period, counted from the end of the financial or calendar year, rules, legal holds, disposal only after a person has reviewed it |
| Erasure | Under GDPR Art. 17, by destroying the key of one message (AES-256-GCM) |
| Search | Full text over SQLite FTS5, including PDF, Word, Excel and PowerPoint attachments |
| Export | PDF, with the attachments embedded if you like, EML, mbox, Maildir, portable HTML archive, index as CSV or JSON |
| Languages | English, German, French, Italian, Spanish |
| Command line | mailvault ships with the app, for scripts and automation |
What MailVault is not
- Not a mail client. Writing and replying still happen in Outlook, Apple Mail or the browser. MailVault keeps.
- Not a cloud service. The archive is a folder on your Mac, and your mail never reaches a server of ours.
- Not a backup. The archive needs a backup of its own, ideally in a second place. MailVault records that place and names it in every check.
- Not Windows software. MailVault runs on the Mac. A portable export can be read anywhere.
Try it on your own mailboxes.
Thirty days with everything open, no sign-up. Or we set up the first archive with you.