> For the complete documentation index, see [llms.txt](https://docs.n8n.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.n8n.io/integrations/builtin/trigger-nodes/n8n-nodes-base.microsoftoutlooktrigger.md).

# Microsoft Outlook Trigger

Use the Microsoft Outlook Trigger node to respond to events in [Microsoft Outlook](https://www.microsoft.com/en-us/microsoft-365/outlook/email-and-calendar-software-microsoft-outlook) and integrate Microsoft Outlook with other applications.

On this page, you'll find a list of events the Microsoft Outlook Trigger node can respond to, and links to more resources.

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**Credentials**

This node's **Authentication** dropdown offers three options:

* **Outlook OAuth2**: the Microsoft Outlook-specific OAuth2 credential (default).
* **Microsoft OAuth2 (Graph)**: a generic Microsoft Graph credential that you can reuse across other Microsoft nodes. When you select this option, make sure you grant the credential the scopes this node needs (for example, `Mail.ReadWrite`).
* **Microsoft Entra Service Principal (App-Only)**: app-only access through a Microsoft Entra app registration, with no signed-in user. Refer to [Microsoft Entra Service Principal credentials](/integrations/builtin/credentials/microsoftentraserviceprincipal.md) for setup and required application permissions.

You can find authentication information for this node [here](/integrations/builtin/credentials/microsoft.md).
{% endhint %}

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**Government Cloud Support**

If you're using a government cloud tenant (US Government, US Government DOD, or China), make sure to select the appropriate **Microsoft Graph API Base URL** in your Microsoft credentials configuration.
{% endhint %}

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**Examples and templates**

For usage examples and templates to help you get started, refer to n8n's [Microsoft Outlook integrations](https://n8n.io/integrations/microsoft-outlook-trigger/) page.
{% endhint %}

## Events <a href="#events" id="events"></a>

* Message Received

## Related resources <a href="#related-resources" id="related-resources"></a>

n8n provides an app node for Microsoft Outlook. You can find the node docs [here](/integrations/builtin/app-nodes/n8n-nodes-base.microsoftoutlook.md).

View [example workflows and related content](https://n8n.io/integrations/microsoft-outlook-trigger/) on n8n's website.