Skip to content
Lettio logo

Lettio

Hosts a private email mailbox on EU servers over IMAP, SMTP, JMAP and CalDAV, with an MCP interface that lets assistants read and send mail.

From ≈ $3.36/mo

Developer toolsAgentsFor developersUsage-based pricing
lettio.eu ↗
Open lettio.euAlternativesSet it up for my teamIs Lettio yours? Claim the card →
At a glanceswept Oct 24, 2026

not read yet

Use

For
People and teams who want private, European-hosted email with a built-in AI assistant
Price
From ≈ $3.36/mo€3 · pricing page, read Oct 26, 2026Trial & discounts: 30-day money back
Company
Valmia Solutions s.r.oprivacy policy
Used for
  • Search a whole mailbox by sender, subject or text
  • Draft and send replies from your own address
  • Migrate an existing mailbox from Gmail or Outlook
read off lettio.eu on Oct 26, 2026
Worth knowingcomputed from what we read · each with its source
  • Has an MCP server (1 in the registry)public registry →
Pricingpricing page, read Oct 26, 2026

From ≈ $3.36/mo

€3

Trial & discounts 30-day money back

pricing page

The companyeach fact with its source · read Oct 26, 2026
  • HeadquartersEuropean Unionper their About page
Your datawhat they publish, each line with its page · read Oct 26, 2026

“Your messages are never used to train a model — ours or anyone else's.”

security page ↗

These are Lettio's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 26, 2026
  • MCP servereu.lettio/mcpverified in the MCP registry
  • Stateanswers, requires sign-inchecked 2026-10-26
  • Address to connectmcp.lettio.eu/mcp
  • API docslettio.eu/developersthe vendor's page ↗
  • MCP docslettio.eu/developersthe vendor's page ↗

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Developer toolsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

Compare Lettio with

Pick up to two.

All 10 alternatives to Lettio →

All Developer tools tools →

Not it? Say what you need

beta

Three tools from the Atlas for the job you describe, each with what fits and what does not.

From people who use itnot part of the reading

No notes yet. What do you use Lettio for?

Sign in to leave a note
Questions this page answers
  • What is Lettio?

    Hosts a private email mailbox on EU servers over IMAP, SMTP, JMAP and CalDAV, with an MCP interface that lets assistants read and send mail. It is listed in the Atlas under Developer tools and made by Valmia Solutions s.r.o.

  • Who is Lettio for?

    People and teams who want private, European-hosted email with a built-in AI assistant

  • How much does Lettio cost?

    Paid plans start at ≈ $3.36/mo (€3/mo), per Lettio's pricing page on 2026-10-26.

  • Is Lettio free?

    No. Its pricing page showed no free plan on 2026-10-26.

  • Do people use Lettio?

    Little sign of use.

  • Who owns Lettio?

    Lettio is run by Valmia Solutions s.r.o, per its privacy policy (2026-10-26).

  • Does Lettio train AI on your data?

    No, per its security page (2026-10-26): “Your messages are never used to train a model — ours or anyone else's.”

  • Is Lettio safe?

    We do not audit vendors. What Lettio publishes, read 2026-10-26: GDPR stated on its security page; on training with your data, “Your messages are never used to train a model — ours or anyone else's.”.

  • What are alternatives to Lettio?

    In Developer tools, by use: TinyFn, The AI Web Platform, PoliteReach, Mailbox MCP, adbtd, Bancada.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk