What is the key difference between Outlook Personal MCP and Proton Mail MCP?

Outlook Personal MCP belongs to the Communication category with local stdio execution, while Proton Mail MCP belongs to the Communication category with local stdio execution.

How do I install Outlook Personal MCP or Proton Mail MCP in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Outlook Personal MCP and Proton Mail MCP free or paid?

Outlook Personal MCP operates under a Free / Open Source model (No auth required). Proton Mail MCP operates under a Free / Open Source model (other).

Which MCP server has more tools and community activity?

Outlook Personal MCP lists 32 tools with 0 views and 1 GitHub stars. Proton Mail MCP lists 32 tools with 1 views and 5 GitHub stars.

Can I use both Outlook Personal MCP and Proton Mail MCP together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Outlook Personal MCP vs Proton Mail MCP

In-depth architectural comparison of the Outlook Personal MCP and Proton Mail MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Outlook Personal MCP

Communication · Local stdio

Quality: 51/100 (Good) | Auth: No auth required

Proton Mail MCP

Communication · Local stdio

Quality: 59/100 (Good) | Auth: other

Verdict Summary: Choose Outlook Personal MCP if you need specialized Communication tools running via a local process. Choose Proton Mail MCP if your workspace requires Communication integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Outlook Personal MCP when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: whoami, list_messages, search_messages.

Explore Outlook Personal MCP Details

Choose Proton Mail MCP when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Free / Open Source).
You have access to required keys: PROTONMAIL_USERNAME, PROTONMAIL_PASSWORD.
Primary tools included: send_email, reply_email, reply_all_email.

Explore Proton Mail MCP Details

Feature & Specification Comparison

Specification	O Outlook Personal MCP Communication	Proton Mail MCP sethbang Communication
Summary	Full-control MCP server for a personal Outlook.com mailbox and calendar (Microsoft Graph).	Unofficial Proton Mail MCP server — send, read, search, and organize email over SMTP and IMAP (via Proton Mail Bridge). Bulk ops with dry-run previews, read-only mode, and Trash-by-default deletes. Not affiliated with Proton AG.
Category & Scope	Communication

Tools & Capabilities Breakdown

Outlook Personal MCP Tools (32)

whoami

Return the signed-in user's Microsoft account profile

list_messages

List messages (newest first); optionally filter by folder or unread-only

search_messages

Full-text search across the entire mailbox (Graph `$search`)

get_message

Get a single message; optionally include the full body

list_attachments

List a message's attachments (id, name, size, content type)

download_attachment

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Outlook Personal MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "outlook-personal-mcp": {
      "command": "uvx",
      "args": [
        "mcp-outlook-personal"
      ]
    }
  }
}

Proton Mail MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "sethbang-proton-mail-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "proton-mail-mcp"
      ],
      "env": {
        "PROTONMAIL_USERNAME": "YOUR_PROTONMAIL_USERNAME_HERE",
        "PROTONMAIL_PASSWORD": "YOUR_PROTONMAIL_PASSWORD_HERE"
      }
    }
  }
}

Frequently Asked Questions

Outlook Personal MCP is categorized under Communication and uses a local stdio subprocess. In contrast, Proton Mail MCP belongs to Communication using local stdio subprocess. Select Outlook Personal MCP when you need capabilities focused on communication and Proton Mail MCP when you require tools for communication.

More alternatives to Outlook Personal MCP More alternatives to Proton Mail MCP Communication category hub