Download
Download MailVault
Thirty days with everything unlocked, with no sign-up and no account with us. When the trial ends, your archive stays readable, searchable and verifiable.
Four steps to a first archive
- Unzip and move to ApplicationsOpen the zip file in your Downloads folder and drag MailVault into Applications.
- Open itThe first time, macOS asks once whether you want to open an app downloaded from the internet. Because the app is notarised by Apple, there is no warning about an unidentified developer.
- Create an archiveChoose a name, a location and the regimes that apply to you: GeBüV, GoBD, GDPR or SEC 17a-4. The defaults and the checks in the compliance view follow from that choice.
- Bring the mail inAdd a mailbox – Microsoft 365, Outlook.com, Gmail or any other IMAP account – or bring in older stores from Outlook, Apple Mail or Thunderbird. If you like, the archive then collects by itself every hour, day or week.
One decision that cannot be made laterIf you will ever need to erase a message under the GDPR, choose the GDPR when you create the archive. Erasure works by destroying the key of one message, and only what was stored encrypted has a key.
What the trial includes
Nothing is limited for thirty days. If the trial runs out and you take no licence, the archive is not held hostage: you can still reach everything in it.
| Still works without a licence | Needs a licence after the trial |
|---|---|
| Opening, reading and searching the archive | Export as PDF, mbox, Maildir or EML |
| Printing, on paper and through Save as PDF | The portable HTML export |
| Verifying integrity, including the deep check | Saving a message as .eml |
| Saving a single attachment | Dragging a message to the Finder |
| Making a second copy of the archive | New mail, once the archive reaches 1 GB |
Collecting and importing carry on after the trial until the archive takes up 1 GB. What counts is the space messages and attachments occupy in the archive: compressed, and each attachment once, however many messages carry it. The limit applies to scheduled collection too. What applies right now is shown in the software itself, under Settings ▸ Licence.
System requirements
- Operating system
- macOS 14 Sonoma or later.
- Processor
- Apple silicon or Intel; the app contains both.
- Disk space
- As much as your mail needs. Messages are stored compressed, and identical attachments only once.
- Network
- For collecting from the mail server, for the count of installations (which can be switched off), for the licence if you sign in, and for the time-stamp with which an authority confirms the seals of the audit journal, SwissSign by default. Every connection MailVault makes, and what it sends, is listed in the privacy statement.
- Languages
- Interface, help and control report in English, German, French, Italian and Spanish.
Where your data lives
An archive is a folder ending in .mailvault, which the Finder shows as a single file. Inside are the pack files holding the messages, the audit journal, the seals, and a database that is only an index. None of it leaves your Mac; there is no server your mail is uploaded to.
- Back the archive up while it is closed. Closing it completes the database; a copy taken mid-write can catch it half way through an operation.
- No network volume, no synchronising folder. Over SMB or a cloud folder a file lock is easily lost, and two writers on one archive is the one thing the format cannot repair.
- Keep the master key somewhere else too. With GDPR erasure on, the contents are encrypted, and without the master key in the archive folder under
keys/they can no longer be read.
Removing MailVault
Switch off scheduled collection under Accounts first: the job registered with the macOS scheduler belongs to the Mac, not to the app. Then move the app to the Bin. Your archive stays where you created it and opens again with a later installation.
Hear about new versions
One email when there is a new version, or when something changes in the regimes. Nothing else.
Questions
Does the trial cost anything?
No. Everything is unlocked for thirty days, with no sign-up and no payment details. After that the archive stays readable, searchable and verifiable; exports and an archive over 1 GB need a licence.
Do I need an account with MarketVision?
Not for the trial. An account is needed only for a licence you bought: you then sign in under Settings ▸ Licence with a code sent to you by email. Your mail never reaches a MarketVision AG server either way.
Does MailVault send anything to MarketVision?
Once a day, a count: a random identifier, the versions of MailVault and macOS, and the Mac's country and language, nothing about your mail. It can be switched off under Settings ▸ Internet ▸ Counting use, and then nothing is sent for it. While you are signed in, MailVault also asks for your licence at most once a day. The details are in the privacy statement.
How do I update MailVault?
Download the new version here and replace the app in Applications. Your archives stay where they are. MailVault does not look for new versions by itself; to hear about them, sign up for the notice.
Does MailVault run on Windows or Linux?
No, MailVault is built for macOS. A portable export, though, can be read in a browser on any computer, with nothing to install.
How do I get a licence?
Write to us, most easily through the quote request. You will receive a quote, and if you like we set up the first archive with you.
Try it on your own mailboxes.
Thirty days with everything open, no sign-up. Or we set up the first archive with you.