Private. European. Finally intelligent.
Your own mailbox on open standards, hosted in Europe — with an assistant and agents that work under the same privacy guarantees as your mail.
- Data stays in the EU
- Backed up & recoverable
- Open standards, no lock-in
Until now, you had to choose.
Privacy or a real assistant. Open standards or AI. A mailbox that's yours, or one an agent can actually use. Lettio keeps all three — because we run the whole stack ourselves.
Private & European
Your mail lives on infrastructure we run in the EU — encrypted in transit, never mined, never used to train a model. Sovereignty built into the architecture, not promised in a policy.
Yours, on open standards
IMAP, SMTP, JMAP, CalDAV — your own domain, full export. Bring everything, keep everything, leave whenever you want. No bridge, no lock-in.
Ready for AI
Connect your own assistant and agents through the open MCP standard, under the same guarantees as your mail — and only ever send as you.
Give your assistant your inbox — safely.
Lettio speaks the open MCP standard, so your AI assistant and agents can work with your mail. Your mailbox stays private and hosted in Europe; which assistant you connect is your choice.
Read your inbox
- List and open recent messages
- Search the whole mailbox by sender, subject or text
- Read a full message, attachments included
- See folders, unread counts and what needs attention
Act on your behalf
- Reply in the same thread, or start a new one
- Send — always from your own address, never another
- Mark read or unread, flag and star
- Archive, move to a folder, or file to Trash
Sending is pinned to your own address, so an assistant can never send from a foreign mailbox. Connect it once; disconnect any time. See how to connect →
Moving from another provider? How to switch →
Email you can stop worrying about.
Private & European
Hosted on servers we run in the EU. Encrypted in transit, no ads, never used to train a model.
AI & agents
Connect your own assistant and agents over the open MCP standard — under the same guarantees as your mail, and only ever sending as you.
Open standards
IMAP, SMTP, JMAP and CalDAV. Your own domain, full export, no bridge, no lock-in.
Backup & restore
Every message is backed up. We can restore a deleted mail, or a whole mailbox, long after it's gone — something most providers simply can't do.
Migration, handled for you
Moving from Gmail, Outlook or another provider? A real person migrates you across. Keep every message; change nothing on your end.
Calendar & contacts
Calendar and contacts on the same private stack, over open protocols. Everything in one place, nothing locked away.
Your data stays yours.
Private and European, on open standards you own — export whenever you like, in formats every mail client reads. We're independent, and built to last.
Request beta access- Hosted on our own EU servers
- Encrypted backups
- GDPR-ready, DPA on request
- No ads, no data mining
- Never trained on your mail
- IMAP, SMTP, JMAP, CalDAV
- Modern auth and 2FA
- SPF, DKIM, DMARC, MTA-STS
From €2 per mailbox.
€2 per mailbox billed yearly, or €3 month-to-month, and less as your team grows. Agents over MCP and migration are included. Prices are net of VAT.
- Your own domain and mailbox
- Agents over MCP included
- Backup, with restore on request
- Migration handled for you
- Team & shared-domain admin
- Priority support
14-day trial, no card needed · Building agents on email? For developers →
The things you're probably wondering.
Is switching my main email risky?
No — we handle the migration for you. Every message, folder and contact comes across, your clients keep working, and because Lettio runs on open standards you're never locked in. If you ever want to leave, you take everything with you.
You're new — why should I trust you with my email?
Two reasons. First, open standards (JMAP, IMAP, SMTP) mean your mail is never trapped in a proprietary format. Second, everything is continuously backed up and recoverable, so you can't lose data — not even if you delete it by accident.
Why not just use Proton or Tuta?
They're great for privacy, but their encryption means no real AI and no agents — the inbox stays a black box. Lettio keeps your data in Europe and private, while letting an assistant and your own agents actually work with it.
Why not Google Workspace or Microsoft 365?
Because your data lives in the US, under US law. For a business that has to answer for where its data sits, that's a problem. Lettio gives you the modern, intelligent experience with your data kept in Europe on infrastructure we control.
How much does it cost?
Lettio Mail starts at €2 per mailbox per month billed yearly (€3 month-to-month), with volume discounts from 10 mailboxes, and backup, agents over MCP, calendar, contacts and migration included. Developers start free and pay for usage. Prices are net of VAT.
When can I actually use it?
Lettio is in a closed beta. Request access and we invite new teams in batches, with a 14-day trial that needs no card.
Be early to European AI email.
Lettio is in a closed beta. Tell us about your domain and we'll invite you in, with a 14-day trial that needs no card.
Request beta access