How do I install the protonmail mcp server?

Use a recorded configuration for your client, replace example credential values and paths, and verify the documented runtime. Restart or reconnect the client, then inspect the available tools.

What credentials does it need?

It reads `PROTONMAIL_HOST` from the environment. Store these in your client's env block or a secrets manager — never commit them to a repository — and grant the narrowest scope that still covers your use case.

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Protonmail MCP Server

This MCP server provides email sending functionality using Protonmail's SMTP service. It allows both Claude Desktop and Cline VSCode extension to

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What is the Protonmail MCP Server?

This MCP server provides email sending functionality using Protonmail's SMTP service. It allows both Claude Desktop and Cline VSCode extension to send emails on

What it actually does

This MCP server is provided by amotivv, inc., the creators of Memory Box.

Send emails to one or multiple recipients
Support for CC and BCC recipients
Support for both plain text and HTML email content
Comprehensive error handling and logging

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

Tool	What it does
send_email

How to install the Protonmail MCP Server

{
  "mcpServers": {
    "protonmail": {
      "command": "npx",
      "args": ["-y", "npm"],
      "env": {
        "PROTONMAIL_HOST": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

Variable	Description	Required
PROTONMAIL_HOST	Endpoint or connection string the server talks to.	Optional

Example prompts to try

“Use Protonmail to send email.”

Frequently asked questions

This MCP server provides email sending functionality using Protonmail's SMTP service. It allows both Claude Desktop and Cline VSCode extension to send emails on Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.