Microsoft Outlook

Live 39 Actions 5 Events

Microsoft Outlook Integration for AI Agents

Connect your AI agent to 39 QA'd Microsoft Outlook actions via MCP, A2A, or SDK, with agent authentication, tool-calling execution, and security built-in, plus 5 events to subscribe to.

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Microsoft Outlook AI Agent Actions

39 production-ready actions for your agent to do more on Microsoft Outlook.

Read the Microsoft Outlook docs

39 Actions

List Messages - Get all messages in the signed-in user's mailbox or in a specific folder

Get Message Delta From Folder - Get a set of messages added, deleted, or updated in a specified folder

Get Message - Read properties and relationships of a specific message

Create Draft Message - Create a draft of a new message in JSON format

Update Message - Update the properties of a message object

Delete Message - Delete a message in the user's mailbox

Send Mail - Send a new email message using JSON or MIME format

Send Draft Message - Send a previously created draft message

Forward Message - Forward a message to specified recipients

Reply To Message - Reply to the sender of a message

Reply All To Message - Reply to all recipients of a message

Create Draft Reply To Message - Create a draft to reply to the sender of a message

Create Draft Reply All To Message - Create a draft to reply to the sender and all recipients of a message

Copy Message - Copy a message to a destination folder

Move Message - Move a message to a destination folder

Permanently Delete Message - Permanently delete a message and place it in the purges folder

Create Draft To Forward Message - Create a draft to forward an existing message

List Attachments - Retrieve a list of attachments attached to a message

Get Attachment - Get the properties and relationships of an attachment

Add Attachment - Add a file, item, or link attachment to a message

Delete Attachment - Delete an attachment from a message

Get Mail Folder Delta - Get incremental changes to mail folders in the mailbox

List Mail Folders - Get the mail folder collection under the root folder

Get Mail Folder - Retrieve properties and relationships of a mail folder

Create Mail Folder - Create a new mail folder in the root folder

Update Mail Folder - Update the writable properties of a mailFolder object

Delete Mail Folder - Delete a mail folder

Permanently Delete Mail Folder - Permanently delete a mail folder and remove its items from the mailbox

Copy Mail Folder - Copy a mailFolder and its contents to another mailFolder

Move Mail Folder - Move a mailFolder and its contents to another mailFolder

List Child Folders - Get the folder collection under the specified folder

Create Child Folder - Create a new child mail folder under a specified folder

Create Message In Mail Folder - Create a new draft message in a specified mail folder

List Folder Messages - Get all messages in a specified folder

List Message Rules - Get all message rules defined for the user's inbox

Get Message Rule - Read properties and relationships of a message rule

Create Message Rule - Create a message rule with conditions and actions

Update Message Rule - Change writable properties of a message rule

Delete Message Rule - Delete a message rule

Microsoft Outlook Webhook Events

5 real-time Microsoft Outlook events your AI agent can subscribe to.

Webhooks for AI agents Read the Microsoft Outlook docs

5 Events

Validation Check Confirms to Microsoft that StackOne is reachable when the connection is made.
Subscription Lifecycle Notification Acknowledges Microsoft Graph subscription lifecycle notifications.
Message Created Fired when a message is added to the user's mailbox.
Message Updated Fired when a message in the user's mailbox changes.
Message Deleted Fired when a message is removed from the user's mailbox.

Do More, Build Less

Connect AI to Microsoft Outlook and control what it can do, down to the field

Multiple Interfaces

Access integrations via API, AI SDKs, MCP & A2A.

Microsoft Outlook MCP server

Managed Authentication

Pre-built authentication UI.

Agent auth

Falcon Engine

Every Microsoft Outlook action runs on Falcon.

Agent Execution Engine

StackOne Defender

88.7% prompt injection detection.

Prompt injection defense

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"What impressed us most about StackOne is its ambition and clarity. They're creating infrastructure that modern software and the entire AI agent ecosystem can rely on. The depth of secure integrations, the pace of delivery, and the team's foresight into AI's future uniquely position StackOne to redefine this category."

Luna Schmid, Partner at GV

"We've been impressed by how quickly and deeply StackOne integrates with complex enterprise systems -- and now, with their focus on agent-to-agent interoperability, they're unlocking even more powerful use cases for customers. StackOne delivers all of the above in a universal layer -- without compromise."

Barbry McGann, SVP at Workday Ventures

Product Teams Love Building Agent Integrations With StackOne

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Microsoft Outlook AI agent integration resources

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Microsoft Outlook integration FAQ

Do I need to create my own auth app to connect Microsoft Outlook to StackOne?

Yes, you need an auth app inside Microsoft Entra ID (formerly Azure AD). Microsoft calls this an "App registration." Once registered with the StackOne redirect URI and Mail scopes, paste the Client ID and Secret value into the StackOne dashboard auth config for the Microsoft Outlook connector. Tenant admin consent is required. See the Microsoft Outlook auth docs.

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