Best MCP Servers for Slack, Email & Messaging (November 2026)

Nerq found 2,266 MCP servers for slack, email & messaging, ranked below by GitHub stars and weighted compliance score across 52 global AI jurisdictions. The top-ranked MCP server for slack, email & messaging is resend/resend-mcp with 447 stars and a trust score of 75/100. MCP servers for sending messages, managing channels, and automating communication platforms.

2,266 servers in this category | Data from Nerq

Top 20 MCP Servers for Slack, Email & Messaging

#	Name	Stars	Trust	Author	License	Description
1	resend/resend-mcp	447	B 75	resend	MIT	The official MCP server to send emails and interact with Resend
2	mcp-send-email	444	B 75	resend	MIT	MCP server for sending emails using Resend's API.
3	io.github.vishnumuthyalu/relay	0	B 71	https://github.com/vishnumuthyalu/relay-extension	N/A	Turn GitHub pushes into plain-English client update emails. Map repos to clients and review digests.
4	assistant-ui/tool-ui	527	B 71	assistant-ui	MIT	UI components for AI interfaces
5	telegram-mcp	690	B 70	chigwell	N/A	Telegram MCP server for managing group communications.
6	whatsapp-mcp-server	0	B 70	ydmw74	MIT	MCP server for integrating Claude and other LLMs with WhatsApp.
7	com.ownmailserver/email	0	B- 69	https://ownmailserver.com/meta-muse-email-connector	N/A	Ask about your email delivery: stats, bounces, complaints, message lookup and DNS health. Read-only.
8	link.b59/b59-link	0	B- 69	https://b59.link/mcp-pulsemcp-b59link	N/A	Short links, QR codes and page-view trackers for AI agents, with click stats and email-code sign-up.
9	com.couryo/tools	0	B- 69	https://couryo.com/en/tools	N/A	Free, no login: verify an email address, check SPF/DKIM/DMARC, explain SMTP errors, build SPF/DMARC.
10	io.github.corent1robert/iicrc-restoration-firms	0	B- 69	Unknown	N/A	Find IICRC certified water damage, mold and restoration contractors in the US with emails and phones
11	lemonade-sdk/lemonade	2,217	C 69	lemonade-sdk	N/A	Lemonade helps users discover and run local AI apps by serving optimized LLMs right from their own G
12	msteams-mcp	1	C 69	m0nkmaster	MIT	MCP server for AI assistants in Microsoft Teams.
13	slack-mcp-server	1,310	C 69	korotovsky	N/A	A powerful MCP Slack Server with advanced features for Slack Workspaces.
14	whatsapp-mcp-extended	8	C 68	FelixIsaac	MIT	Extended WhatsApp MCP server with advanced tools for messaging and group management.
15	jeffgreendesign/textrawl	3	C 68	jeffgreendesign	MIT	Turn your documents into Claude's memory. MCP server with hybrid semantic + keyword search over emai
16	win8428/smartlead-mcp-server	3	C 68	win8428	MIT	Automate cold email campaigns effortlessly with SmartLead MCP Server. Integrate with AI tools for st
17	whatsapp-mcp	1	C 68	kotevcode	MIT	MCP server connecting to WhatsApp for message reading and sending.
18	errol-mail	0	C 68	jasondk	MIT	Errol-Mail is an MCP server providing safe and fast Apple Mail access to AI assistants.
19	TKasperczyk/thunderbird-mcp	14	C 68	TKasperczyk	NOASSERTION	MCP server for Thunderbird - enables AI assistants to access email, contacts, and calendars
20	gmail-mcp-server	0	C 68	vxvomar123	MIT	Transform your Gmail with AI commands for easy email management.

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About MCP Servers for Slack, Email & Messaging

MCP servers for sending messages, managing channels, and automating communication platforms. Nerq tracks 2,266 MCP servers in the slack, email & messaging category, each assessed against 52 global AI regulations including the EU AI Act, US state AI laws (California SB53, Colorado SB205), UK AI Bill, and more. Compliance scores are weighted by jurisdiction penalty severity — jurisdictions with higher fines (like the EU AI Act at up to €35M) have more impact on the score than voluntary frameworks.

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