Messaging and email · MCP server
Mail MCP: MCP server, setup and security
Mail MCP is an open-source MCP server published on GitHub that lets an AI agent manage email across accounts perform bulk operations and download attachments. Its repository has 108 stars and its last commit is from October 23, 2026 and it is licensed under MIT.
What Mail MCP does
According to its repository: “Multi-account email over IMAP, SMTP, Exchange Web Services and Microsoft Graph: read, search, send, reply, forward, bulk operations and attachment downloads.”
The Model Context Protocol (MCP) is a standard plug between an AI agent and an outside service: once the server is connected, its tools show up in the agent, which decides when to call them. Mail MCP is listed under Messaging and email, a category of 107 servers in the directory, where it ranks #28 by stars.
Topics declared by the repository: ai-agents, claude, email, exchange, imap, microsoft-graph.
Installing and connecting Mail MCP
No package or remote server is declared in the official MCP registry: you install it from source, following the repository README.
It works with any MCP-compatible client (Claude Desktop, Claude Code, Cursor, VS Code, Codex and most recent agents). You add one entry to the client's MCP configuration: server name, start command or URL, environment variables. Project language: Rust. Listed systems: macOS, Windows, Linux.
Security: what to check
Connecting an MCP server means installing software that talks straight to your agent: it runs with your rights and the model trusts its tool descriptions. The risk therefore depends on what it can touch and how far its code can be trusted.
None of the risk signals we track (system access, secrets, missing licence, abandonment) applies to Mail MCP. That does not replace reading the code.
Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.
Project activity and maintenance
Created on March 13, 2026, the tecnologicachile/mail-mcp repository has 108 stars and 29 forks, with 9 open issues. It has more stars than 68% of the servers in the directory. It received changes this month.
Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.
Verdict
Mail MCP is a reasonable choice; check the points below before connecting it.
Strengths
- Active project: recent commit
- Permissive licence (MIT)
Limitations
- Install from source
Alternatives
- Emailmd1.4K ★
- Vexa2.9K ★
- CometChat Docs129 ★
- Inbox Zero12.8K ★
- Microsoft 365 MCP Server1.1K ★
- Discourse MCP77 ★
Learn more
Frequently asked questions
How do I install Mail MCP?
No package is declared in the MCP registry: clone the tecnologicachile/mail-mcp repository, follow its README, then declare the start command in your client's MCP configuration.
Is Mail MCP free?
The code is published under the MIT licence and can be used free of charge.
Is Mail MCP safe?
No risk signal found (system access, secrets, licence, abandonment). As with any MCP server, keep rights minimal and read the code before sensitive use.
Is it an official server?
Nothing says so: it is a project published by tecnologicachile on GitHub. Check who maintains it before giving it access.
What are the alternatives to Mail MCP?
In the same category: Emailmd, Vexa, CometChat Docs, and Inbox Zero. Emailmd and Vexa score higher on our grid.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score