Proton Mail MCP vs Better Email MCP

In-depth architectural comparison of the Proton Mail MCP and Better Email 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.

Which MCP Server Should You Choose?

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

Choose Better Email MCP when:

• You need dedicated capabilities in the Communication domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (Free / Open Source).
• You have access to required keys: BETTER_EMAIL_MCP_ACCOUNTS.
• Primary tools included: messages, folders, attachments.

Feature & Specification Comparison

Specification	Proton Mail MCP sethbang Communication	Better Email MCP n24q02m Communication
Summary	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.	IMAP/SMTP email MCP server with App Passwords (no OAuth2). Auto-discovers Gmail, Outlook, Yahoo, iCloud. 5 composite tools: search, read, send, reply, forward. Multi-account support.
Category & Scope

Tools & Capabilities Breakdown

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).

{
  "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"
      }
    }
  }
}

{
  "mcpServers": {
    "n24q02m-better-email-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@n24q02m/better-email-mcp"
      ],
      "env": {
        "BETTER_EMAIL_MCP_ACCOUNTS": "YOUR_BETTER_EMAIL_MCP_ACCOUNTS_HERE"
      }
    }
  }
}

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