Fluxmail MCP Server

Fluxmail is self-hosted email infrastructure for agents and apps. It connects to Gmail, Microsoft 365, Outlook.com, and IMAP/SMTP mailboxes. Agents use MCP, apps and backend workflows use the versioned REST API, and operators use the CLI to connect mailboxes, manage access, and run the service. It runs locally over stdio via the published package.

People who work with email and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-29 · ★ 6 · #17 OF 98 MAINTAINED EMAIL · VERIFIED 2026-09-30

NOASSERTION · TypeScript servers · how we verify → /methodology

01 · Install Fluxmail

Claude Code

claude mcp add churichard-fluxmail -- npx -y fluxmail

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "churichard-fluxmail": {
      "command": "npx",
      "args": [
        "-y",
        "fluxmail"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license no standard license detected - usage rights unclear; check the repo before commercial use

npm package fluxmail - unscoped; check the name against the project README before installing

registry namespace io.github.churichard is GitHub-verified and matches the repo owner

03 · What Fluxmail can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.11.1 · 2026-09-29

Fixed · [MCP] Fix tool output schemas so strict clients can call Fluxmail tools (#107)

v0.11.0 · 2026-09-25

Changed · [MCP] Breaking: Pass idempotencyKey to send_email and forward_email, read the delivery operation instead of a sent message, and use get_delivery_operation to check its status; update MCP send clients before…

v0.10.0 · 2026-09-23

Changed · Record whether a local OAuth connection used the browser redirect, a pasted callback URL, or timed out in anonymous telemetry (#91) · Added · [CLI] Finish Gmail and Outlook account connections from a browser…

04 · Who maintains Fluxmail

Fluxmail is maintained by churichard. It's the only MCP server we track from this author; the repo dates to Jul 2026.

05 · Facts

repository: github.com/churichard/fluxmail
website: https://fluxmail.ai/
category: email - ranked #17 of 98 actively-maintained email servers as of 2026-09-30.
release cadence: 10+ releases in the last 90 days (latest 2026-09-29)
registry: io.github.churichard/fluxmail (active, first published 2026-07-13 · 14 versions)
packages: npm:fluxmail

06 · Fluxmail FAQ

What is Fluxmail?

Is Fluxmail still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-29 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Fluxmail?

Run `npx -y fluxmail`. You can also paste the ready-made client config above.

Does Fluxmail run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Fluxmail

Alternatives to Fluxmail

Maintained email servers if Fluxmail isn't the fit.

More email MCP servers · Email MCP (codefuturist) · Google Workspace MCP Server · Mail Muncher · Mailbridge

More TypeScript MCP servers · Churnkey · Pipedrive CRM · Clari Layer · Clawcall · Pumpclaw · see all