ToolTrust
C38/100
Smithery

outlook

mcpsmithery

@Smithery

Read and send emails, manage calendar events, and organize contacts. Search messages, handle attachments, and schedule meetings.

By Smithery | 107 findings | Scanned 6/3/2026 | tooltrust-scanner/v0.3.13

6 High31 Medium19 Low51 Info

Risk Summary

Needs Approval

Dep Visibility plus Excessive Permissions raises enough risk that this tool should not be auto-trusted.

Potential impact: This finding indicates the tool should be reviewed before it is trusted.

Recommended action: Keep this tool behind manual approval and avoid unattended runs until the risky capabilities are narrowed or removed.

Suggested policy: keep this tool behind manual approval, do not allow unattended runs, and re-scan after narrowing risky permissions.

Security Findings (107)

  • HighAS-002

    ⚠️Excessive Permissions ×4

    tool declares network permission

    OUTLOOK_DOWNLOAD_OUTLOOK_ATTACHMENTOUTLOOK_QUERY_EMAILSOUTLOOK_SEARCH_MESSAGESOUTLOOK_UPDATE_CALENDAR_EVENT

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • HighAS-010

    🔑Insecure Secret Handling ×2

    input parameter "delta_token" appears to accept a secret or credential

    OUTLOOK_GET_MAIL_DELTA

    input parameter "skip_token" appears to accept a secret or credential

    OUTLOOK_GET_MAIL_DELTA

    Fix: Avoid accepting raw credentials as input parameters. Use secret managers (e.g. 1Password CLI, AWS Secrets Manager) and ensure credentials are never logged or stored in agent traces.

  • MediumAS-002

    ⚠️Excessive Permissions ×31

    tool declares fs permission

    OUTLOOK_ADD_EVENT_ATTACHMENTOUTLOOK_ADD_MAIL_ATTACHMENTOUTLOOK_CALENDAR_CREATE_EVENTOUTLOOK_CREATE_ATTACHMENT_UPLOAD_SESSIONOUTLOOK_CREATE_CALENDAROUTLOOK_CREATE_CONTACTOUTLOOK_CREATE_CONTACT_FOLDEROUTLOOK_CREATE_DRAFTOUTLOOK_CREATE_DRAFT_REPLYOUTLOOK_CREATE_EMAIL_RULEOUTLOOK_CREATE_MAIL_FOLDEROUTLOOK_CREATE_MASTER_CATEGORYOUTLOOK_DELETE_CONTACTOUTLOOK_DELETE_EMAIL_RULEOUTLOOK_DELETE_EVENTOUTLOOK_DELETE_MAIL_FOLDEROUTLOOK_DOWNLOAD_OUTLOOK_ATTACHMENTOUTLOOK_GET_CONTACT_FOLDERSOUTLOOK_GET_MAIL_DELTAOUTLOOK_GET_PROFILEOUTLOOK_LIST_CONTACTSOUTLOOK_LIST_MAIL_FOLDERSOUTLOOK_LIST_MESSAGESOUTLOOK_MOVE_MESSAGEOUTLOOK_SEND_EMAILOUTLOOK_UPDATE_CALENDAR_EVENTOUTLOOK_UPDATE_CONTACTOUTLOOK_UPDATE_EMAILOUTLOOK_UPDATE_EMAIL_RULEOUTLOOK_UPDATE_MAILBOX_SETTINGS

    tool declares db permission

    OUTLOOK_QUERY_EMAILS

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • LowAS-002

    ⚠️Excessive Permissions ×11

    tool declares http permission

    OUTLOOK_CALENDAR_CREATE_EVENTOUTLOOK_CREATE_DRAFTOUTLOOK_SEND_EMAILOUTLOOK_UPDATE_CALENDAR_EVENTOUTLOOK_UPDATE_EMAIL

    input schema exposes 13 properties (threshold: 10)

    OUTLOOK_CALENDAR_CREATE_EVENT

    input schema exposes 15 properties (threshold: 10)

    OUTLOOK_CREATE_CONTACT

    input schema exposes 22 properties (threshold: 10)

    OUTLOOK_LIST_MESSAGES

    input schema exposes 11 properties (threshold: 10)

    OUTLOOK_SEND_EMAILOUTLOOK_UPDATE_CALENDAR_EVENT

    input schema exposes 16 properties (threshold: 10)

    OUTLOOK_UPDATE_CONTACT

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • LowAS-011

    ℹ️Missing Rate-Limit / Timeout ×8

    tool performs network or execution operations but declares no rate-limit, timeout, or retry configuration

    OUTLOOK_CALENDAR_CREATE_EVENTOUTLOOK_CREATE_DRAFTOUTLOOK_DOWNLOAD_OUTLOOK_ATTACHMENTOUTLOOK_QUERY_EMAILSOUTLOOK_SEARCH_MESSAGESOUTLOOK_SEND_EMAILOUTLOOK_UPDATE_CALENDAR_EVENTOUTLOOK_UPDATE_EMAIL

    Fix: Declare explicit rate-limit, timeout, and retry configuration for all network and execution tools. Implement exponential back-off and surface resource state to the calling agent.

  • InfoAS-014

    ℹ️Dependency Inventory Unavailable ×51

    Tool did not expose metadata.dependencies or repo_url, so supply-chain coverage is limited.

    OUTLOOK_ADD_EVENT_ATTACHMENTOUTLOOK_ADD_MAIL_ATTACHMENTOUTLOOK_CALENDAR_CREATE_EVENTOUTLOOK_CREATE_ATTACHMENT_UPLOAD_SESSIONOUTLOOK_CREATE_CALENDAROUTLOOK_CREATE_CONTACTOUTLOOK_CREATE_CONTACT_FOLDEROUTLOOK_CREATE_DRAFTOUTLOOK_CREATE_DRAFT_REPLYOUTLOOK_CREATE_EMAIL_RULEOUTLOOK_CREATE_MAIL_FOLDEROUTLOOK_CREATE_MASTER_CATEGORYOUTLOOK_DELETE_CONTACTOUTLOOK_DELETE_EMAIL_RULEOUTLOOK_DELETE_EVENTOUTLOOK_DELETE_MAIL_FOLDEROUTLOOK_DOWNLOAD_OUTLOOK_ATTACHMENTOUTLOOK_GET_CALENDAR_VIEWOUTLOOK_GET_CONTACTOUTLOOK_GET_CONTACT_FOLDERSOUTLOOK_GET_EVENTOUTLOOK_GET_MAILBOX_SETTINGSOUTLOOK_GET_MAIL_DELTAOUTLOOK_GET_MAIL_TIPSOUTLOOK_GET_MASTER_CATEGORIESOUTLOOK_GET_MESSAGEOUTLOOK_GET_PROFILEOUTLOOK_GET_SCHEDULEOUTLOOK_GET_SUPPORTED_LANGUAGESOUTLOOK_GET_SUPPORTED_TIME_ZONESOUTLOOK_LIST_CALENDARSOUTLOOK_LIST_CONTACTSOUTLOOK_LIST_EMAIL_RULESOUTLOOK_LIST_EVENT_ATTACHMENTSOUTLOOK_LIST_EVENTSOUTLOOK_LIST_MAIL_FOLDERSOUTLOOK_LIST_MESSAGESOUTLOOK_LIST_OUTLOOK_ATTACHMENTSOUTLOOK_LIST_REMINDERSOUTLOOK_LIST_USERSOUTLOOK_MOVE_MESSAGEOUTLOOK_QUERY_EMAILSOUTLOOK_REPLY_EMAILOUTLOOK_SEARCH_MESSAGESOUTLOOK_SEND_DRAFTOUTLOOK_SEND_EMAILOUTLOOK_UPDATE_CALENDAR_EVENTOUTLOOK_UPDATE_CONTACTOUTLOOK_UPDATE_EMAILOUTLOOK_UPDATE_EMAIL_RULEOUTLOOK_UPDATE_MAILBOX_SETTINGS

    Fix: Review and remediate the identified issue.

Scan this tool yourself

Reproduce this audit locally, integrate into CI, or let your agent audit its own tools.

Install once, then scan any MCP server:

$ curl -sfL https://raw.githubusercontent.com/AgentSafe-AI/tooltrust-scanner/main/install.sh | bash
$ tooltrust-scanner scan --server "npx -y outlook"

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