software

FastMail MCP Server

Model Context Protocol server for FastMail email management and automation capabilities.

Problem Statement

AI applications needed a standardized way to interact with FastMail's email management system through the Model Context Protocol, enabling automated email operations, calendar management, and contact handling.

Solution Approach

We developed an MCP server that provides comprehensive FastMail functionality:

  • Email sending and receiving
  • Calendar event management
  • Contact management
  • Mailbox organization
  • Search and filtering operations
  • Attachment handling

Technologies Used

  • Python 3.11+ - Core language
  • FastAPI - MCP server framework
  • FastMail API - Official FastMail API client
  • MCP Protocol - Model Context Protocol

Key Achievements

  • ✅ Full FastMail API integration
  • ✅ Email lifecycle management
  • ✅ Calendar synchronization
  • ✅ Secure authentication
  • ✅ Production-ready deployment

Impact

Enables AI applications to:

  • Automate email workflows
  • Manage calendars and events
  • Organize contacts and mailboxes
  • Search and filter emails efficiently

Lessons Learned

  • Email APIs require careful rate limiting
  • Calendar synchronization needs conflict resolution
  • Security is paramount for email access
  • Search functionality benefits from indexing strategies