Claude Outlook MCP

This is a Model Context Protocol (MCP) tool that allows Claude to interact with Microsoft Outlook for macOS.

Features

• Mail:
• Read unread and regular emails
• Search emails by keywords
• Send emails with to, cc, and bcc recipients
• Send HTML-formatted emails
• Attach files to emails
• List mail folders
• Calendar:
• View today's events
• View upcoming events
• Search for events
• Create new calendar events
• Contacts:
• List contacts
• Search contacts by name

Prerequisites

• macOS with Apple Silicon (M1/M2/M3) or Intel chip
• Microsoft Outlook for Mac installed and configured
• Bun installed
• Claude desktop app installed

Installation

1. Clone this repository:

git clone 
cd claude-outlook-mcp

2. Install dependencies:

bun install

3. Make sure the script is executable:

chmod +x index.ts

4. Update your Claude Desktop configuration: Edit your claude_desktop_config.json file (located at ~/Library/Application Support/Claude/claude_desktop_config.json) to include this tool:

 "mcpServers": {
 "outlook-mcp": {
 "command": "/Users/YOURUSERNAME/.bun/bin/bun",
 "args": ["run", "/path/to/claude-outlook-mcp/index.ts"]

Make sure to replace YOURUSERNAME with your actual macOS username and adjust the path to where you cloned this repository. 5. Restart Claude Desktop app 6. Grant permissions:

• Go to System Preferences > Privacy & Security > Privacy
• Give Terminal (or your preferred terminal app) access to Accessibility features
• You may see permission prompts when the tool is first used

Usage

Once installed, you can use the Outlook tool directly from Claude by asking questions like:

• "Can you check my unread emails in Outlook?"
• "Search my Outlook emails for the quarterly report"
• "Send an email to with the subject 'Meeting Tomorrow'"
• "What's on my calendar today?"
• "Create a meeting for tomorrow at 2pm"
• "Find the contact information for Jane Smith"

Examples

Email Operations

Check my unread emails in Outlook

Send an email to alex@example.com with subject "Project Update" and the following body: Here's the latest update on our project. We've completed phase 1 and are moving on to phase 2.

Send an HTML email to team@example.com with subject "Weekly Report" and attach the quarterly_results.pdf file

Search my emails for "budget meeting"

Calendar Operations

What events do I have today?

Create a calendar event for a team meeting tomorrow from 2pm to 3pm

Show me my upcoming events for the next 2 weeks

Contact Operations

List all my Outlook contacts

Search for contact information for Jane Smith

Advanced Features

HTML Email Support

You can send rich HTML-formatted emails by setting the isHtml parameter to true:

Send an HTML email to john@example.com with the subject "Project Update" and body "<h1>Project Update</h1><p>We've made <b>significant progress</b> on the project.</p>"

File Attachments

You can attach files to your emails by providing the file paths in the attachments parameter:

Send an email to jane@example.com with subject "Monthly Report" and attach the reports/march_2025.pdf file

For best results with attachments:

• Use absolute file paths when possible
• Make sure the files are accessible to the process running the MCP tool
• Attachments will automatically be handled with robust error detection

Troubleshooting

If you encounter issues with attachments:

• Check if the file exists and is readable
• Use absolute file paths instead of relative paths
• Make sure the user running the process has permission to read the file If you encounter the error Cannot find module '@modelcontextprotocol/sdk/server/index.js':

1. Make sure you've run bun install to install all dependencies
2. Try installing the MCP SDK explicitly:

bun add @modelcontextprotocol/sdk@^1.5.0

3. Check if the module exists in your node_modules directory:

ls -la node_modules/@modelcontextprotocol/sdk/server/

If the error persists, try creating a new project with Bun:

mkdir -p ~/yourpath/claude-outlook-mcp
cd ~/yourpath/claude-outlook-mcp
bun init -y

Then copy the package.json and index.ts files to the new directory and run:

bun install
bun run index.ts

Update your claude_desktop_config.json to point to the new location.

License

MIT