"Top 20 most starred MCP servers on GitHub" matching MCP servers:

Give AI agents their own email inboxes. Create, send, receive, and manage email entirely via MCP tools.

MCP server for the HAUL API marketplace, enabling email and phone verification, credit balance checks, and top-ups.

MCP server that gives Claude and other MCP hosts full access to Mail.app on macOS — search, read, send, reply, flag, move, and more across all accounts configured in Mail.app.

MCP server that enables email management (send, read, search, delete, etc.) via IMAP/SMTP, compatible with Gmail, Outlook, Yahoo, iCloud, and other standard mail servers.

The most complete Resend MCP server — full coverage of the Resend API (emails, domains, contacts, broadcasts, templates, segments, topics, webhooks, logs) plus a unique debug/diagnostics layer no other Resend MCP offers: deliverability analysis, DNS troubleshooting, email lifecycle inspection, bounce explanation, and account auditing. Works with Claude Code, Cursor, Claude Desktop, and any other

Gmail MCP server for searching, reading, and sending mail over MCP.

Provides a standardized interface for interacting with Unipile's tools and services through a unified API.

Enables email address validation and outbound email status checking for the Xeams on-premise email server via MCP tools.

Enables querying and retrieving email messages from an IMAP mailbox via MCP tools, with an indexed storage backend on Cloudflare.

gmail-mcp is a remote MCP server that exposes Gmail as a set of tools — search, read, label, draft, send — over streamable HTTP with OAuth 2.1. It runs on Cloudflare Workers under your own domain.

Enables interaction with Microsoft Outlook through a unified API, supporting tools for email, calendar, and contacts management via natural language.

Connects AI agents to self-hosted Stalwart mail servers via a Cloudflare Worker and JMAP, enabling mailbox search, reading, listing, and two-step draft-and-send email operations through MCP.

Comprehensive MCP server for local Microsoft Outlook automation, providing 64 tools across email, calendar, contacts, tasks, notes, and Exchange features on both Windows and macOS.

Provides a standardized interface for interacting with Mailchimp's tools and services through the Model Context Protocol, enabling easy management of Mailchimp campaigns, audiences, and reports via natural language commands.

A collection of MCP servers for Apple macOS apps (Mail, Contacts, Notes, Memory, Messages, Calendar, Reminders) enabling AI assistants to read, search, create, and update data via JXA, SQLite, and EventKit.

Remote MCP server on Cloudflare Workers that exposes multiple Gmail accounts to Claude, replicating Anthropic's built-in Gmail connector with an added account parameter.

MCP server for email + calendar via classic Outlook on Windows (COM automation). No Azure app registration, no OAuth — it just drives the Outlook desktop client you're already signed into.

A set of five independent MCP servers for Google Workspace (Gmail, Calendar, Drive, Sheets, Docs) enabling secure access and management of email, calendar events, files, spreadsheets, and documents. Features OAuth 2.1 with per-resource tokens and uses stable Google product APIs.

MCP server for Microsoft Outlook on Windows that lets AI assistants manage email, contacts, calendars, and tasks through the Outlook desktop client via COM.

A collection of three zero-dependency MCP servers for web scraping via Chrome DevTools Protocol, crypto wallet and price monitoring, and email validation with SMTP sending.