rubit-mcp-mail MCP server

by bgalmes·io.github.bgalmes/rubit-mcp-mail·v1.0.0

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Read-only MCP server for your mail — provider-agnostic IMAP that never marks a message as read.

A92/100grade A

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Safety scan

A92/100

full report

Adoption

Growing

0 stars16 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

rubit-mcp-mail tools (6)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

get_attachment
Download one attachment into the configured download directory.
list_accounts
List configured mail accounts and whether each is authenticated.
list_folders
List the folders in a mailbox with message and unread counts.
list_messages
Browse messages in a folder, newest first.
read_message
Read one message in full: headers, body text, and attachment metadata.
search_messages
Search a folder. All supplied criteria are combined with AND.

Public scan report

scanner v0.1.10 · 2026-10-03 · same rubric, same numbers if you re-run it

no findings

Code scan28 source files scanned25/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitylocal package, no credentials required12/15
Maintenancelast push 17 days ago15/15
Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Overall 92/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

How rubit-mcp-mail compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score: 92/100; higher than 95% of 48,255 servers
Tools: 6; the typical server has 7
Tools that change things: 0%; typical: 0%. Fewer write tools means less an agent can break
Downloads a week: 16; more than 4% of 12,191 servers with a package

What its tools let an agent do: 6 read

Install rubit-mcp-mail in Claude Code, Cursor or VS Code

claude mcp add rubit-mcp-mail -- uvx rubit-mcp-mail

Add to Cursor

What the publisher says

From the rubit-mcp-mail repository's README, as published. We do not edit it. Read it on GitHub

rubit-mcp-mail

A read-only MCP server for reading your mail. Provider-agnostic: it speaks IMAP, so it works with Outlook.com, Gmail, Fastmail, iCloud, or a self-hosted server — the provider is a line of config, not a code change.

Read-only by construction. Folders are opened with EXAMINE, never SELECT, and bodies are fetched with BODY.PEEK, so reading a message does not even mark it as read. There are no send, move, delete, or flag code paths, and a test asserts none are ever added.

📖 Full documentation:

Quick install

Download the installer for your system from the latest release and run it:

Nothing needs to be installed beforehand: Python and every dependency are inside that one file. A window asks for your provider and email address, signs you in, and registers the mail server with Claude Desktop and Claude Code if it finds them — restart Claude Desktop afterwards and your mail is there. It also leaves you a rubit-mcp-mail Settings shortcut for everything you want to change later. No terminal, at any point.

There is no macOS installer; on a Mac, install from source (below).

A note on antivirus warnings. Windows Defender or Avast may flag this .exe. This is a known false positive common to unsigned PyInstaller-built applications, not anything this project's code does — see the install guide for what to do about it. Every published SHA-256 is listed on the changelog.

Tools

Folders are addressed by role — inbox, sent, drafts, junk, trash, archive — so you never need to know that Outlook calls it Junk Email while Gmail calls it [Gmail]/Spam. Raw folder names work too.

Full arguments and return shapes: Tools reference.

Install with pip

If you already have Python 3.11+ and would rather not run an installer:

pip install rubit-mcp-mail
rubit-mcp-mail install      # the same setup wizard, from the terminal

Install from source

cd /path/to/rubit-mcp-mail
conda create -p ./.venv python=3.12 pip -y     # this machine has no python3-venv
./.venv/bin/python -m pip install -e .

Then configure an account, rubit-mcp-mail auth , and rubit-mcp-mail doctor. The Windows variant and the full walkthrough are in Install from source.

Setting up a mailbox

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

rubit-mcp-mail: common questions

Is rubit-mcp-mail MCP server safe?: Yes, by our scan: it is graded A (92/100). Read the rubit-mcp-mail safety report
How do I install rubit-mcp-mail?: It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does rubit-mcp-mail need an API key?: Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is rubit-mcp-mail maintained?: The last commit was 49 days ago (2026-09-16). The latest release is v1.0.0.
How does rubit-mcp-mail compare with other MCP servers?: safety score 92/100 (higher than 95% of 48,255 servers); tools 6 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.