Mark Outlook Email Read/Unread
Description
The Mark Outlook Email Read/Unread activity updates the read status of an email in a Microsoft 365 (Outlook) mailbox using an Outlook connection.
This activity modifies the IsRead property of the email identified by its Microsoft Graph message ID.
Common Capabilities
Process Data Support
This activity supports dynamic configuration using variables from the Process Data drawer.
You can bind values from:
- Model Data
- Form Data
- System Data
- Enterprise Variables
- Activity Outputs
Variables can be used directly or inside Liquid or JavaScript expressions where supported.
Learn more → Using Process Data
Design Time Configuration
Display Text
Specifies the activity's display name as shown on the workflow canvas.
Connection Name
Specifies the Outlook (Microsoft 365) connection to use for updating the email read state.
Mail Folder
Specifies the mail folder that contains the email (for example, Inbox, Sent Items, or Drafts).
- If left empty, the default folder configured in the Outlook connection is used.
- Default value: empty.
Message Identifier
Specifies the Microsoft Graph Message ID of the email to update.
Use the MessageId value returned by the Read Outlook Email activity.
Mark As Read
Controls whether the email is marked as read or unread.
- true – Marks the email as read (
IsRead = true) - false – Marks the email as unread (
IsRead = false)
Default value: true
Execution Control (Wait All Incoming)
Controls how the activity behaves when multiple incoming execution paths converge.
For detailed behavior and usage guidance, see Execution Control – Wait All Incoming.
Error Handling (On Error)
Defines how the workflow proceeds if the activity encounters an error.
Supported strategies include Fault, Continue, Suspend, and Retry.
For details, see On Error Handler.
Output
Updated Email
Returns the email whose read state was updated (if found), serialized as JSON.
The output includes:
- From
- To
- Subject
- TextBody
- HtmlBody
- ReceivedAt
- MessageId
- InternalId
- Attachments