io.github.Alexendros/proton-mail-mcp MCP Server

Name: io.github.Alexendros/proton-mail-mcp MCP Server
Author: io.github.Alexendros

io.github.Alexendros/proton-mail-mcp

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What is the io.github.Alexendros/proton-mail-mcp MCP server?

Proton Mail MCP via Bridge (IMAP/SMTP) · 13 tools · dual transport stdio + HTTP.

How to install io.github.Alexendros/proton-mail-mcp

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

PROTON_BRIDGE_HOST
Hostname or IP of the Proton Mail Bridge (default: 127.0.0.1 for local, or container hostname in compose).
PROTON_IMAP_PORT
IMAP port exposed by Proton Mail Bridge (default: 1143).
PROTON_SMTP_PORT
SMTP port exposed by Proton Mail Bridge (default: 1025).
PROTON_USERNAME
required
Bridge username (your Proton Mail address).
PROTON_PASSWORD
required
secret
Bridge-generated app password (NOT your Proton account password).

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "proton-mail-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@alexendros/proton-mail-mcp"
      ],
      "env": {
        "PROTON_BRIDGE_HOST": "<YOUR_PROTON_BRIDGE_HOST>",
        "PROTON_IMAP_PORT": "<YOUR_PROTON_IMAP_PORT>",
        "PROTON_SMTP_PORT": "<YOUR_PROTON_SMTP_PORT>",
        "PROTON_USERNAME": "<YOUR_PROTON_USERNAME>",
        "PROTON_PASSWORD": "<YOUR_PROTON_PASSWORD>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "proton-mail-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@alexendros/proton-mail-mcp"
      ],
      "env": {
        "PROTON_BRIDGE_HOST": "<YOUR_PROTON_BRIDGE_HOST>",
        "PROTON_IMAP_PORT": "<YOUR_PROTON_IMAP_PORT>",
        "PROTON_SMTP_PORT": "<YOUR_PROTON_SMTP_PORT>",
        "PROTON_USERNAME": "<YOUR_PROTON_USERNAME>",
        "PROTON_PASSWORD": "<YOUR_PROTON_PASSWORD>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "proton-mail-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@alexendros/proton-mail-mcp"
      ],
      "env": {
        "PROTON_BRIDGE_HOST": "<YOUR_PROTON_BRIDGE_HOST>",
        "PROTON_IMAP_PORT": "<YOUR_PROTON_IMAP_PORT>",
        "PROTON_SMTP_PORT": "<YOUR_PROTON_SMTP_PORT>",
        "PROTON_USERNAME": "<YOUR_PROTON_USERNAME>",
        "PROTON_PASSWORD": "<YOUR_PROTON_PASSWORD>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "proton-mail-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@alexendros/proton-mail-mcp"
      ],
      "env": {
        "PROTON_BRIDGE_HOST": "<YOUR_PROTON_BRIDGE_HOST>",
        "PROTON_IMAP_PORT": "<YOUR_PROTON_IMAP_PORT>",
        "PROTON_SMTP_PORT": "<YOUR_PROTON_SMTP_PORT>",
        "PROTON_USERNAME": "<YOUR_PROTON_USERNAME>",
        "PROTON_PASSWORD": "<YOUR_PROTON_PASSWORD>"
      }
    }
  }
}

Claude Code

claude mcp add proton-mail-mcp --env PROTON_BRIDGE_HOST=<YOUR_PROTON_BRIDGE_HOST> --env PROTON_IMAP_PORT=<YOUR_PROTON_IMAP_PORT> --env PROTON_SMTP_PORT=<YOUR_PROTON_SMTP_PORT> --env PROTON_USERNAME=<YOUR_PROTON_USERNAME> --env PROTON_PASSWORD=<YOUR_PROTON_PASSWORD> -- npx -y @alexendros/proton-mail-mcp