Best Mail AI Skills & MCP Servers

MCP server for APIMesh — 76 x402-payable tools for AI agents (74 APIs + wallet usage + spend caps). Covers web vitals, security headers, SEO audits, email security and verification, tech-stack detection, brand assets, redirect chains, indexability, brand

Local-first personal productivity MCP server for Claude, Cursor, and any MCP client. Email, Calendar, Messaging, Search, Image Generation. BYOK, no cloud, no signup.

HTTP↔WebSocket bridge daemon between thunderbird-cli (or any HTTP client) and the Thunderbird WebExtension. Stateless proxy, localhost-only.

MCP server that gives Claude Desktop full access to your email through Mozilla Thunderbird. 12 high-level tools: search, read, compose, reply, attachments, folders.

Low-level CLI to manage Mozilla Thunderbird email from the shell. 38 commands for search, read, compose, reply, attachments, folders, bulk ops. Designed for AI agents.

Postals — the agent skill that turns any AI into a direct mail machine. One MCP tool call mails a physical handwritten postcard (real pen-and-ink, USPS 3-5 day delivery, $4.99 per card). Works with Claude Desktop, Cursor, Claude Code, OpenClaw, n8n, LangC

Multi-account, multi-provider email MCP server

An MCP server that lets AI agents (Claude, Cursor, etc.) reach you on any channel — desktop, Telegram, SMS, email — with two-way ask/reply, real-time inbox push, Do Not Disturb, idle gating, multi-session routing, and a one-page web UI for setup. Zero con

Create autonomous AI agents that actually execute tasks—read emails, manage git, run commands, search the web, and orchestrate workflows through natural conversation

Email MCP server with IMAP + SMTP support

HITL infrastructure for AI agents. Your agent calls awaitHuman(), a human reviews via Slack/email/dashboard, agent resumes with a typed response.

MCP server for the Orboto Mail Service — exposes send / batch / templates / suppression / inbound / webhooks / quota as MCP tools for Claude, Cursor, and other agent-aware clients. Boot via `npx @orboto/mail-mcp` with OMS_API_KEY in env.

Local MCP server for Google Workspace (Gmail, Drive, Calendar, Sheets, Docs, Contacts, Tasks, Meet, Search Console, +Forms/Chat/Admin) across multiple accounts — OAuth-only, encrypted token storage, deny-by-default writes.

Better MCP server for Email (IMAP/SMTP) with composite tools optimized for AI agents

Free email for AI agents, instant messaging between agents, and cloud file storage — all through one MCP server

Gmail MCP server — scope-gated tools + attachment/download path jails + supply-chain hardening. Fork of GongRzhe/Gmail-MCP-Server via ArtyMcLabin's intermediate fork.

Model Context Protocol server for EmailVerify.io. Provides email validation, bulk validation, and email finder capabilities.

Email MCP server with IMAP + SMTP support

MCP server for Microsoft Outlook email and calendar

Nex CLI provides organizational context & memory to AI agents. Connect email, CRM, Slack, meetings, and 100+ tools into one knowledge graph. Delegates to the nex-cli binary.

The easiest MCP server for Google Workspace — Drive, Docs, Sheets, Gmail, Calendar, and Forms. 153 tools with one-click browser auth. Read Word docs, PDFs, and spreadsheets straight from Drive.

Draft, test, and send Mailchimp campaigns straight from your MCP client — with audience management, subscriber CRUD, and post-send analytics behind safe-by-default send gates. STDIO or Streamable HTTP.

Unified MCP server for email access across Gmail, Outlook, iCloud, and IMAP — search, send, organize, and batch-manage emails from any AI assistant

LMCP — connect Claude Desktop, Cursor, Windsurf to Mail, Calendar, Contacts, Teams, OneDrive on macOS. Privacy-first: all data stays on your Mac.