Microsoft Outlook

Allow Fours to access your Microsoft Outlook account to send, receive, and manage emails on your behalf.

Overview

By integrating Fours with Microsoft Outlook, users can leverage automation workflows to enhance email productivity. Tasks such as sending emails can be automated, improving efficiency and enabling customized email workflows tailored to specific business needs.

Org-Level vs User-Level

Org-Level: Not available. Outlook is connected per user only.

User-Level: Each user authenticates via Microsoft OAuth for personal Outlook access.

Create Integration (Org-Level)

Outlook has no org-level connection. Each person connects their own mailbox — see Create User Integration.

Create User Integration

Click the Connect Now button in the User Integrations section, you will be redirected to the Microsoft OAuth2.0 authentication page.

Click the Accept button to grant Fours permission to access your Outlook account. This authorization enables Fours to read, send emails on your behalf.

After the authorization is granted, you will be redirected to the Fours console. You can see the integration is connected successfully.
Verify the integration by clicking the Verify button. If the integration is successful, you will see the Verified status.

Fours AI Tools

Fours AI works an Outlook mailbox through the actions on a user-level Outlook connection, which reach your mailbox through Microsoft Graph. In the agent they carry a microsoft_email__ prefix.

Mail

Tool	Description
`list-messages`	List messages from a mail folder
`get-message`	Get one message
`send-mail`	Send a new email immediately, optionally with file attachments
`reply-to-message`	Reply to a message’s sender, optionally with file attachments
`reply-all-to-message`	Reply to all recipients of a message
`update-message`	Update a draft, or the fields of a message that can change
`move-message`	Move a message to another mail folder
`copy-message`	Copy a message to another mail folder
`delete-message`	Delete a message from the mailbox

Drafts

Tool	Description
`create-draft-message`	Save a new draft, optionally with file attachments
`send-draft-message`	Send a saved draft

Attachments

Tool	Description
`list-message-attachments`	List the attachments on a message
`download-message-attachment`	Download the contents of a file attached to a message
`add-message-attachment`	Attach one file to a saved draft

Folders and account

Tool	Description
`list-mail-folders`	List the top-level mail folders
`list-mail-folder-children`	List the folders inside a mail folder
`create-mail-folder`	Create a folder inside a mail folder
`get-account`	Get the connected mailbox’s address and display name

send-mail, create-draft-message and reply-to-message attach files in the same call: each file is a name, a MIME type and the file’s contents in base64. Microsoft Graph accepts a file attached this way only when it is under 3 MB, and add-message-attachment has the same limit (Attach large files to Outlook messages). If Graph rejects a send, a draft or a reply — an attachment over that limit, for example — the tool fails with Graph’s reason; it never reports a message as sent when Graph refused it.

Edit Integration

For security purposes, editing an existing Microsoft Outlook integration is not allowed. The practical way is to delete it and then re-create it from the beginning.

Delete Integration

The Microsoft Outlook integration can be deleted like all other integrations. Once the deletion is triggered, all integration info including the credentials and access tokens will be deleted immediately & permanently from Fours. No time window or methods to recover.

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