outlook-desktop-mcp-encoding 0.3.5

Fork of outlook-desktop-mcp with encoding fixes

outlook-desktop-mcp

Turn your running Outlook Desktop into an MCP server with 29 tools. No Microsoft Graph API, no Entra app registration, no OAuth tokens — just your local Outlook and the authentication you already have.

Any MCP client (Claude Code, Claude Desktop, etc.) can then send emails, manage your calendar, create tasks, handle attachments, and more — all through your existing Outlook session.

Quick Start

1. Configure MCP Server (using uvx)

To use outlook-desktop-mcp, add the following snippet to your MCP client's config file (e.g., claude_desktop_config.json). This uses uvx to automatically install and run the server (requires Python 3.12+ on Windows):

{
  "mcpServers": {
    "outlook-desktop": {
      "command": "uvx",
      "args": [
        "outlook-desktop-mcp"
      ]
    }
  }
}

Requirements

• Windows — COM automation is Windows-only
• Outlook Desktop (Classic) — the OUTLOOK.EXE that comes with Microsoft 365 / Office. The new "modern" Outlook (olk.exe) does not support COM
• Python 3.12+
• Outlook must be running when the MCP server starts

Available Tools (29)

All tool descriptions are optimized for LLM tool discovery — Claude understands exactly how to use each one, what arguments to pass, and what to expect back.

💡 Important Configurations

Many tools support the following dynamic properties for advanced control:

• encoding (default: "utf-8"): Used in read_email, save_attachment, etc. Pass an encoding string (e.g., "euc-kr", "cp949") alongside your tool call to correctly fetch non-English characters in email subjects, bodies, or file names.
• folder_depth / max_depth (default: 4): Outlook MCP searches for your target folders recursively up to this limit to resolve names into objects. If you hide folders deep within your hierarchy, you can bump this parameter (e.g. 10) when calling tools like list_folders, list_emails, or move_email.

Email (9 tools)

Tool	Description
send_email	Send an email with To/CC/BCC, plain text or HTML body
list_emails	List recent emails from any folder, with optional unread filter
read_email	Read full email content by entry ID or subject search
search_emails	Full-text search across email subjects and bodies
reply_email	Reply or reply-all, preserving the conversation thread
mark_as_read	Mark a specific email as read
mark_as_unread	Mark a specific email as unread
move_email	Move an email to Archive, Trash, or any folder
list_folders	Browse the complete folder hierarchy with item counts

Calendar (8 tools)

Tool	Description
list_events	List upcoming events with recurring occurrence support
get_event	Read full event details by entry ID
create_event	Create a personal calendar appointment
create_meeting	Create a meeting and send invitations to attendees
update_event	Modify an existing event's subject, time, location, etc.
delete_event	Delete an appointment or cancel a meeting (sends notices)
respond_to_meeting	Accept, decline, or tentatively accept a meeting invite
search_events	Search calendar events by keyword within a date range

Tasks (5 tools)

Tool	Description
list_tasks	List pending or completed tasks, sorted by due date
get_task	Read full task details including body and completion status
create_task	Create a new task with subject, due date, importance
complete_task	Mark a task as complete (100%)
delete_task	Remove a task

Attachments (2 tools)

Tool	Description
list_attachments	List all attachments on an email or calendar event
save_attachment	Download an attachment to a local directory

Categories (2 tools)

Tool	Description
list_categories	List all available color categories in Outlook
set_category	Set or clear categories on any email, event, or task

Rules (2 tools)

Tool	Description
list_rules	List all mail rules with enabled/disabled status
toggle_rule	Enable or disable a mail rule by name

Out of Office (1 tool)

Tool	Description
get_out_of_office	Check whether Out of Office auto-reply is on or off

License

See LICENSE file.