best of · updated September 2026

The 15 best email MCP servers

The 15 email MCP servers worth your time, out of 579 we track - actively maintained, with real adoption, ranked on monthly installs, GitHub stars, and commit recency. Checked nightly.

Email MCP servers let agents read or send mail through a provider API. Confirm OAuth versus app-password auth and whether send capabilities are optional.

01 Emailmd ★ 1,373 · commit 2026-08-26 emailmd converts markdown into responsive, email-safe HTML that works across Gmail, Outlook, Apple Mail, Yahoo, and every other client. 19,161 installs/mo · 10+ releases/90d · no env vars documented $ npx -y emailmd 02 Email MCP ★ 111 · commit 2026-08-21 An MCP (Model Context Protocol) server providing comprehensive email capabilities via IMAP and SMTP. 15,389 installs/mo · 40 tools documented · needs 4 env vars $ npx -y @codefuturist/email-mcp 03 Google Workspace (aaronsb) ★ 183 · commit 2026-08-31 Give your AI agent real access to Google Workspace - Gmail, Calendar, Drive, Docs, Sheets, Tasks, Meet and Contacts - from one MCP server, across as many accounts as you have. 8,142 installs/mo · 10+ releases/90d · needs 2 env vars $ npx -y @aaronsb/google-workspace-mcp 04 Gmail MCP Server ★ 237 · commit 2026-09-11 Installation: npx @artymclabin/gmail-mcp auth - or just tell your Claude to install the MCP from this repo (https://github.com/ArtyMcLabin/Gmail-MCP-Server) and let it set up. 1,704 installs/mo · needs 3 env vars $ npx -y @artymclabin/gmail-mcp 05 Imap MCP Server ★ 94 · commit 2026-09-14 A powerful Model Context Protocol (MCP) server that provides seamless IMAP email integration with secure account management and connection pooling. 1,919 installs/mo · 3 releases/90d · needs 2 env vars $ npx -y imap-mcp-server 06 Atomic Mail ★ 267 · commit 2026-09-10 Give your agent a real inbox Dashboard · Website · Docs · Issues Atomic Mail Agentic is an email provider for autonomous AI agents, built by Atomic Mail. 1,125 installs/mo · 5 releases/90d · no env vars documented $ npx -y @atomicmail/mcp-modelcontextprotocol 07 Outlook MCP ★ 31 · commit 2026-09-17 Microsoft Outlook personal accounts: mail, calendar, contacts, to-do, drafts (62 tools). 1,902 installs/mo · 40 tools documented · 10+ releases/90d · needs 3 env vars $ uvx outlook-graph-mcp 08 Apple Mail MCP (imdinu) ★ 65 · commit 2026-09-14 The only Apple Mail MCP server with full-coverage body search - reliable on large mailboxes where AppleScript-based servers timeout. 1,140 installs/mo · 3 releases/90d · needs 1 env var $ uvx apple-mail-mcp 09 Outlook Assistant ★ 37 · commit 2026-09-09 MCP server for Outlook email, calendar, and contacts - let your AI assistant manage your inbox directly from the conversation. 3,003 installs/mo · 6 releases/90d · needs 5 env vars $ npx -y @littlebearapps/outlook-assistant 10 Email Inbox API + Sending by Sendmux ★ 73 · commit 2026-09-18 Official SDK, CLI, and MCP workspace for Sendmux. 888 installs/mo · 10+ releases/90d · no env vars documented $ uvx sendmux-mcp 11 Openagentemail MCP Server ★ 36 · commit 2026-09-18 Open communication and task handoffs for AI agents. 926 installs/mo · 10+ releases/90d · needs 2 env vars $ npx -y @openagentemail/mcp 12 e2a - email for AI agents ★ 190 · commit 2026-09-13 Send transactional email and give agents real two-way inboxes, with people in control. 233 installs/mo · 10+ releases/90d · no env vars documented $ npx -y @e2a/mcp-server 13 SendGrid MCP Server ★ 3 · commit 2026-09-17 A Model Context Protocol (MCP) server that provides comprehensive access to SendGrid's API v3 for email marketing, transactional email operations, dynamic template management, and detailed analytics. 2,652 installs/mo · 40 tools documented · 7 releases/90d · needs 12 env vars $ npx -y sendgrid-mcp 14 Apple Contacts (mgcrea) ★ 3 · commit 2026-09-16 Search and read Apple Contacts - resolves numbers and emails to names, writes off by default 2,544 installs/mo · 10+ releases/90d · no env vars documented $ npx -y @mgcrea/mcp-apple-contacts 15 Thunderbird CLI ★ 43 · commit 2026-09-15 IMAP libraries force you to manage credentials, OAuth flows, and sync state - dangerous in an AI-agent context. 444 installs/mo · 1 release/90d · no env vars documented $ npx -y thunderbird-cli-mcp

How to choose between them

Emailmd tops the list - the most installs (19,161 last month) and actively maintained. 3 of these 15 offer a remote endpoint (no local process to run); the rest are local stdio servers. 6 document no required env vars - paste the config and go; the others need env vars set first (each page lists exactly which). Where we've compared two of these head-to-head, the comparison is linked on each one's page.

Quick answers

Which email MCP server is most installed?

Emailmd, with 19,161 installs in the last month (as of September 2026).

How many email MCP servers exist?

We track 579 email MCP servers in the official registry. The 15 above are the actively-maintained ones with real adoption - ranked by monthly installs, GitHub stars, and commit recency.

All 89 email MCP servers

Ranked 16 onward, same order as above. Status checked last night.

How this list is ranked

Ranked from live registry + GitHub data: monthly installs (npm/PyPI), GitHub stars, and commit recency - recomputed nightly. No pay-to-rank, ever. The 15 above lead the full list of 89, all of which you can see on this page. The other 490 we track have stopped being maintained, or nobody is using them yet. Full recipe: how we verify.