Everything a private mailbox should be — and finally, intelligent.
Built on open standards, hosted in Europe, with an assistant and agents that work under the same guarantees as your mail.
Your mail, on infrastructure we run in Europe.
Every mailbox lives on servers we operate in the EU. No ads, no data mining, and your mail is never used to train a model. Privacy is where the servers are and how they're run — not a line in a policy.
- EU hosting by default, not an enterprise add-on
- Encrypted in transit and at rest
- GDPR-ready, data-processing agreement on request
- No ads, no profiling, no training on your mail
An assistant and agents, built in — safely.
Lettio speaks the open Model Context Protocol, so your AI assistant and agents can read, search, reply and organise your inbox. Sending is pinned to your own address, so an agent can never send from a foreign mailbox. Which assistant you connect is your choice; your mailbox stays private and in Europe.
- Native MCP server — connect any MCP client
- Read, search, reply, organise; send only as you
- Hosted (OAuth) or run locally — your call
- The AI layer runs under the same guarantees as your mail
Yours to keep, yours to leave.
IMAP, SMTP, JMAP and CalDAV — your own domain, and a full export whenever you want it, in formats every mail client reads. No proprietary bridge to install, no lock-in to work around. We'd rather earn your stay than trap it.
- IMAP, SMTP, JMAP, CalDAV, CardDAV
- Your own domain and unlimited aliases
- One-click export in open formats
- No bridge tax, no lock-in
Nothing is ever lost.
Every message is backed up continuously and can be brought back — a single mail you deleted by mistake, or an entire mailbox — long after it's gone. Most providers, free ones included, simply can't do this.
- Continuous, automatic backups
- One-click restore of a message or a whole mailbox
- Recover long after deletion
We move you in.
Switching from Gmail, Outlook or another provider is the part people dread. A real person migrates you across — you keep every message and change nothing on your end. No lost history, no downtime you have to manage.
- White-glove migration by a real person
- Keep every message and folder
- Human support in Europe
More than a mailbox, on the same private stack.
Calendar and contacts run on the same EU-hosted, open-standards stack as your mail, over CalDAV and CardDAV. Everything in one place, nothing locked away in a format you can't take with you.
- Calendar over CalDAV
- Contacts over CardDAV
- The same privacy and export guarantees
Be early to European AI email.
We're building Lettio now. Join the waitlist to get in first — with a founding price that stays.