fastmail

The Fastmail MCP Server is a professional-grade solution designed for seamless email management using the JMAP API. By integrating with Claude Desktop, it allows developers to efficiently handle email workflows, manage user accounts, and streamline communication processes. This server is particularly valuable for applications requiring robust email functionalities, ensuring that you can interact with Fastmail’s features programmatically.

Once connected to the Fastmail MCP Server, you can interact with it using JMAP API commands to perform a variety of tasks such as retrieving emails, managing folders, and sending messages. Although specific tools are not documented, you can issue standard JMAP queries to leverage the server's capabilities fully. For optimal results, focus on commands that align with email management, such as Email/get, Mailbox/get, and Email/send.

Prerequisites

Ensure you have Node.js installed on your machine, as it is required to run the Fastmail MCP Server.

Option A: Quick Start with npx

If you're looking for a quick way to get started, you can use npx to run the server directly:

npx -y fastmail-mcp-server  

Option B: Global Install Alternative

Alternatively, you can install the Fastmail MCP Server globally to use it from anywhere on your system:

npm install -g fastmail-mcp-server  

After installation, you can start the server using:

fastmail-mcp-server  

When configuring the Fastmail MCP Server, ensure that you set the necessary environment variables for your Fastmail credentials. Common variables include FASTMAIL_USERNAME and FASTMAIL_PASSWORD, which are essential for authentication. Additionally, be mindful of the server's response times, as large email accounts may result in delays during initial data retrieval.