Atlas / MCP servers / wallisking1991 / Outlook

OutlookSAFE

mcp/wallisking1991/outlook
Verdict
SAFE
Grade
B
Trust score
89 /100
Exposed tools
6 6r · 0w · 0d
Transport
—
License
—
Stars
59
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

A Model Context Protocol (MCP) server that provides access to Microsoft Outlook email functionality, allowing LLMs and other MCP clients to read, search, and manage emails through a standardized interface.

Features

  • Folder Management: List available mail folders in your Outlook client
  • Email Listing: Retrieve emails from specified time periods
  • Email Search: Search emails by contact name, keywords, or phrases with OR operators
  • Email Details: View complete email content, including attachments
  • Email Composition: Create and send new emails
  • Email Replies: Reply to existing emails

Prerequisites

  • Windows operating system
  • Python 3.10 or later
  • Microsoft Outlook installed and configured with an active account
  • Claude Desktop or another MCP-compatible client

Installation

  1. Clone or download this repository
  2. Install required dependencies:
pip install mcp>=1.2.0 pywin32>=305
  1. Configure Claude Desktop (or your preferred MCP client) to use this server

Configuration

Claude Desktop Configuration

Add the following to your MCP_client_config.json file:

{
"mcpServers": {
"outlook": {
"command": "python",
"args": ["Your path\\outlook_mcp_server.py"],
"env": {}
}
}
}

Usage

Starting the Server

You can start the server directly:

python outlook_mcp_server.py

Or allow an MCP client like Claude Desktop to start it via the configuration.

Available Tools

The server provides the following tools:

  1. list_folders: Lists all available mail folders in Outlook
  2. list_recent_emails: Lists email titles from the specified number of days
  3. search_emails: Searches emails by contact name or keyword
  4. get_email_by_number: Retrieves detailed content of a specific email
  5. reply_to_email_by_number: Replies to a specific email
  6. compose_email: Creates and sends a new email

Example Workflow

  1. Use `list_folders
Read from source at commit a2eb0d481db8OBSERVED · 2026-10-08
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02

Exposed tools (6)

6 read · 0 write · 0 destructive.

ToolRiskDescription
compose_emailread
get_email_by_numberread
list_foldersread
list_recent_emailsread
reply_to_email_by_numberread
search_emailsread
03

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codePASS
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
none-observed
Shell
none-observed
Dependencies
not all pinned
Secrets in source
none-found

Findings (2)

LOWInventory / provenance · inv.no_license · CWE-1104
Why it matters. no LICENSE file and no repo licence
Fix. add a licence
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
requirements.txt
mcp, pywin32
Why it matters. 2 requirement(s) not pinned with ==
Fix. pin exact versions

Gates applied: no_behavioural_pass, no_license.

Audited 2026-10-08 · audit v0.4.1 · source sha a2eb0d481db8full audit observations/trust-audit/mcp-server/wallisking1991__outlook.json · Report an issue / request a re-scan
04

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-08a2eb0d481db8SAFEB89first audit
05

Questions

What tools does Outlook expose?

6 in total: 6 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.

Is Outlook safe to connect to an agent?

The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.

What credentials does Outlook need?

No credential environment variables were found in its source, so it appears to need none.

How current is this page?

The grade is for one exact copy of the source (a2eb0d481db8), read on 2026-10-08. The repository is watched and re-audited when it changes.

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