[ENHANCEMENT] Microsoft Outlook: New Attachment Received & Download Attachment

[dannyroosevelt]

Potentially model it off of Gmail New Attachment Received trigger — how is the attachment returned? Via a publicly accessible url? Or a file you need to download to tmp to process?

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Source: New Attachment Received

Triggers a workflow when a new email containing one or more attachments arrives in a specified Microsoft Outlook folder. Emits an event for each attachment found.

Props:

Prop	Type	Description	API Mapping / Concept
folderId	string	Optional. The ID of the folder to monitor. Defaults to the Inbox.	mailFolders/{folder-id} segment in API subscription/polling target
timer	object	Optional. Configure the polling interval if using polling trigger. Not applicable for instant (webhook) trigger.	Polling frequency / Webhook subscription (changeNotifications)

Output / Emitted Data:

The source emits an object for each attachment, containing details like:

• attachmentId: The unique ID of the attachment.
• messageId: The unique ID of the message the attachment belongs to.
• name: The filename of the attachment.
• contentType: The MIME type of the attachment (e.g., "application/pdf").
• size: The size of the attachment in bytes.
• isInline: Whether the attachment is intended to be displayed inline.
• messageSubject: The subject of the email message.
• messageSender: Information about the sender of the email.
• messageReceivedDateTime: When the email was received.

Note: This source typically relies on Microsoft Graph change notifications (webhooks) for near real-time triggering or periodic polling of the specified folder, filtering for messages where hasAttachments is true. It then fetches attachment details for new messages.

API Document:

• List attachments
• Attachment resource type
• Subscription resource type (for webhooks)

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Action: Download Attachment

Retrieves the raw content of a specific email attachment from Microsoft Outlook using its Message ID and Attachment ID.

Props:

Prop	Type	Description	API Mapping
messageId	string	The ID of the message containing the attachment.	{message-id} segment in the API path
attachmentId	string	The ID of the attachment to download.	{attachment-id} segment in the API path
filePath	string	The path to tmp dir

Output:

Returns an object containing:

• fileName: The original filename of the attachment.
• contentType: The MIME type of the attachment.
• filePath: A temp file path within the Pipedream execution environment where the content is stored.

Note: This action primarily uses the GET /messages/{message-id}/attachments/{attachment-id}/$value endpoint to retrieve the raw attachment data. For file attachments, it might alternatively retrieve the contentBytes property from the standard GET /messages/{message-id}/attachments/{attachment-id} endpoint if the attachment is small (under 3MB), but using /$value is more general.

API Document: Get attachment (including raw content via $value)

[vunguyenhung]

@dannyroosevelt, currently for the Gmail New Attachment Received source, each event returns an Attachment ID, where user can use the Gmail - Download Attachment to download it to tmp dir.