"Collaboration Between Multiple AIs via MCP (Master Control Program)" matching MCP servers:

Enables AI assistants to manage multiple Outlook/Microsoft 365 mailboxes simultaneously through MCP tools, with local OAuth token storage.

Read-only MCP server that connects to multiple IMAP accounts, enabling cross-account email listing, search, and retrieval without modifying mailboxes.

An MCP server providing comprehensive email capabilities via IMAP and SMTP, enabling AI assistants to read, search, send, manage, schedule, and analyze emails across multiple accounts.

An MCP server providing comprehensive email capabilities via IMAP and SMTP, enabling AI assistants to read, search, send, manage, schedule, and analyze emails across multiple accounts.

Local-first MCP server for agents that need to work across multiple Gmail and Microsoft 365 accounts without cloud token storage.

An MCP server that interfaces with the Missive API, enabling Claude to manage email conversations, contacts, and team collaboration.

Connects multiple Gmail accounts to Claude Desktop via MCP, enabling email search, labeling, drafts, and confirmed sending through natural language.

An unofficial MCP server for Smartlead that exposes the SmartProspect API and core Smartlead operations, enabling agents to search for leads, manage campaigns, and control credit spending with configurable safety modes.

Enables AI agents to submit and triage leads via email, check endpoint health, and generate production-ready form code across multiple frameworks without requiring API keys.

Gives Claude (or any LLM) full control over Apple Mail — read, search, compose, reply, move, flag, and delete messages — via AppleScript on your local machine, with no cloud intermediary.

Enables Claude to interact with email accounts via IMAP and SMTP, providing tools for searching, reading, sending, and managing emails across multiple providers.

MCP server for Checkpoint Harmony Email & Collaboration (Avanan). Enables AI assistants to manage email security, anti-phishing, anti-malware, and threat detection via the Avanan API.

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

Connect all your email accounts to your AI agent — not just one. AnyMail MCP is a local MCP server that gives an agent full read/send/organize/delete access across multiple Gmail accounts at once, over IMAP/SMTP.

An MCP server that gives Claude Code and Codex full control of a personal Outlook.com mailbox and calendar via the Microsoft Graph API, enabling mail, draft, folder, and calendar operations through natural language.

Gives Claude Code access to Outlook Mail, Calendar, and Contacts via Microsoft Graph, with safety-first defaults (no sending, no hard deletes, every mutation logged). Supports multiple Microsoft accounts through a PKCE OAuth flow.

A Gmail MCP server with native multi-account support, enabling management of multiple Gmail accounts from a single server instance.

MCP server for interacting with Google Gmail and Calendar via natural language, supporting multiple accounts.

Enables AI assistants to send push notifications to WeChat, email, and other channels via PushPlus, supporting multiple message formats and channels.

Enables natural language control over Google Workspace services including Gmail, Calendar, Drive, Docs, Sheets, Slides, Forms, Tasks, Chat, Contacts, Apps Script, and Custom Search via a remote MCP server hosted on Google Cloud Run.