Best Thunderbird MCP Servers
Thunderbird is a free and open-source email client, personal information manager, and calendar application developed by the Mozilla Foundation.
Why this server?
Provides tools to control the Thunderbird email client, including mail search, folder management, compose, settings, calendar, and message filters.
AlicenseAqualityBmaintenanceEnables AI agents to control Thunderbird directly, including mail, folders, contacts, calendar, filters, and settings, through its own internals.5051MITWhy this server?
Allows reading and searching local Thunderbird mail archives (.mbox format) by indexing exported messages.
Why this server?
Provides integrated email reading and sending capabilities by accessing Thunderbird's local mail store and auto-discovering account configurations, allowing management of Thunderbird email accounts.
AlicenseAqualityDmaintenanceReads and searches Thunderbird mail from local mbox files and sends mail via SMTP using auto-discovered identities, filing copies in Thunderbird's Sent folder.91MITWhy this server?
Offers email rendering analysis and compatibility previews for the Thunderbird email client.
AlicenseAqualityBmaintenanceMCP server for email compatibility analysis. Analyze, preview, diff, and fix HTML emails across 15 email clients — plus capture real screenshots and create shareable links with an optional API key.98017MITWhy this server?
Emulates Mozilla Thunderbird client for IMAP compatibility with email providers, specifically to solve authentication issues with 163 email.
FlicenseBqualityDmaintenanceA Model Context Protocol service for comprehensive email management that supports multiple email providers, with complete functionality for viewing, organizing, and batch processing emails.10-Why this server?
Provides an optional Agent Chat add-on and MCP bridge for Thunderbird, enabling a local LLM agent to exchange chat messages through a token-protected local listener without accessing email or modifying Thunderbird's native chat interface.
AlicenseNot gradedqualityCmaintenanceEnables MCP-compatible AI clients to access and manage a mailbox over IMAP and SMTP, including reading, reviewing, and summarizing email while keeping credentials outside the repository.MITWhy this server?
Exposes Thunderbird's email capabilities as machine-readable API tools, allowing AI agents to interact with email data while Thunderbird manages all IMAP/SMTP credentials and account state.
AlicenseNot gradedqualityDmaintenanceGive AI agents full read/write email access through Mozilla Thunderbird. Zero credentials touch the agent — all IMAP/SMTP stays in Thunderbird. 12 MCP tools, 38 CLI commands, signed Thunderbird 128+ extension. Tested at 22 accounts / 249k messages.8639MITWhy this server?
Provides tools for searching and reading Thunderbird emails, including full-text search, retrieving threads, messages, folders, accounts, and stats, using Thunderbird's local index without requiring IMAP credentials.
AlicenseNot gradedqualityCmaintenanceEnables searching and reading Thunderbird emails locally through MCP, using the mail client's own index for offline, credential-free access.MITWhy this server?
Provides AI agents with access to Thunderbird email, contacts, and calendars, enabling operations like searching messages, reading email content, sending/composing mail, searching contacts, and listing calendars.
FlicenseNot gradedqualityDmaintenanceEnables AI agents to access Thunderbird email, contacts, and calendars through the Model Context Protocol, with tools for searching, reading, composing, and managing messages.3-