What is an Outlook MCP server?

An Outlook MCP server exposes your Outlook.com, Hotmail, or Microsoft 365 mailbox as MCP tools an AI agent can call. MailMCP connects via IMAP/SMTP — compatible with both personal Outlook accounts and business Office 365 accounts.

Do I need a password or an App Password?

No. Microsoft has switched off password sign-in for IMAP and SMTP: neither your usual password nor an App Password works anymore. You connect with the "Sign in with Microsoft" button and approve access on Microsoft's own page — MailMCP never sees your password.

Is Claude Outlook connector better or is MailMCP?

Claude native Microsoft 365 connector reads your emails; it sends only if a Microsoft 365 admin enables it, never with an attachment, and not from personal Outlook.com accounts. It cannot schedule, create folders or flag messages. MailMCP is a real Outlook MCP server exposing 26 tools including send with attachments, schedule, move, create_folder, flag — full email control.

Does it support shared mailboxes in Microsoft 365?

Not yet. The "Sign in with Microsoft" connection gives access to the mailbox of the account you sign in with, so shared mailboxes cannot be added for now. A dedicated mailbox with its own sign-in (for example a licensed support@ account) works normally. Contact us if you need shared mailboxes.

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Outlook + MCP

Outlook MCP: connect Outlook to Claude and ChatGPT in 2 minutes

MailMCP is a hosted Outlook MCP server. Outlook.com, Hotmail, Live.com and Microsoft 365 business accounts all work — send, reply, schedule and organize via Claude, ChatGPT, Cursor or Windsurf.

Connect Outlook to Claude — free Outlook setup guide Personal Hotmail or Outlook.com See native vs MCP comparison →

Why you need an Outlook MCP server

Microsoft does not ship an MCP server for Outlook. Claude.ai and ChatGPT each have a native Outlook connector, but sending needs a Microsoft 365 admin, never carries an attachment, and personal Outlook.com accounts are not supported. Cursor has no Outlook integration at all.

That leaves Outlook.com and Hotmail users, and anyone who needs attachments or scheduled sends, without a proper way to let their AI handle their email. MailMCP fixes this gap with a hosted Outlook MCP server built on standard IMAP/SMTP.

Your AI gets 26 MCP tools: direct sending via SMTP with attachments, scheduled sends, folder creation, flag management, IMAP-level search. Everything your AI needs to operate Outlook on your behalf.

Works with every Outlook account type

Outlook.com / Hotmail / Live.com

Personal Microsoft accounts. Connect them with the "Sign in with Microsoft" button — no password to enter.

Microsoft 365 Business

Business Outlook (former Office 365), including company domains. Connect with "Sign in with Microsoft"; your admin may need to approve MailMCP once.

Shared mailboxes

Shared support@, sales@ mailboxes in Microsoft 365 are not supported yet with Microsoft sign-in. A dedicated mailbox with its own sign-in works normally — contact us if you need shared mailboxes.

Connect Outlook to Claude in 2 minutes

1

Add your Outlook address to MailMCP

Sign up on MailMCP free, click "Add a mailbox" and type your Outlook, Hotmail or Microsoft 365 address. MailMCP recognises it as a Microsoft mailbox, including company domains.
2

Sign in with Microsoft

Click "Sign in with Microsoft", sign in on Microsoft's page and approve access. There is no password to paste: MailMCP never sees it. The connection is tested automatically.
3

Enable MCP and grab the config

Toggle MCP on. Copy the JSON config from the MailMCP dashboard and paste into your AI client — Claude Desktop, ChatGPT Applications, Cursor, Windsurf, n8n or LibreChat.
4

Talk to Outlook through Claude

Try: "Read unread emails in Outlook, summarize, and send a polite decline to the ones asking for a meeting this week." All 26 tools are instantly available.

What teams do with MailMCP + Outlook

Executive assistant workflow

Claude filters the inbox every morning, drafts replies to low-stakes emails, sends the ones you approve, schedules the rest for the right moment.

Support team triage

Shared Outlook mailbox (support@) connected to n8n via MCP. AI classifies tickets, routes them to Zendesk or Freshdesk, replies to simple questions.

Sales follow-ups

Every time a prospect replies in Outlook, Claude extracts the key points, updates your CRM via another MCP, drafts the next response.

Weekly digest

Cursor reads the last 7 days of Outlook using the Outlook MCP server, produces a markdown summary for your team channel.

Connect Outlook to Claude today

Free plan. No credit card. 2 minutes. Works with Outlook.com and Microsoft 365.

Start free — Outlook MCP server

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