> ## Documentation Index > Fetch the complete documentation index at: https://docs.blinkops.com/llms.txt > Use this file to discover all available pages before exploring further. # Send Mail Send outlook message. * **Least privileged** Microsoft Graph permission to access the action via **application**: `Mail.Send`. ``` Note: Using the delegated (OAuth) connection type will only allow to insert the connected user's ID. ``` External Documentation To learn more, visit the [Microsoft Outlook documentation](https://learn.microsoft.com/en-us/graph/api/user-sendmail?view=graph-rest-1.0\&tabs=http). ## Basic Parameters
| Parameter | Description | | ------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Attachments | A comma-separated list of file identifiers to add as attachments.
A file identifier represents a file created or referenced earlier in the workflow (for example, from a file action or another step that produces a file).
See [Using with Files in Workflows](https://docs.blinkops.com/docs/workflows/building-workflows/files) for more details. | | CC Recipients | A comma-separated list of email addresses of the CC recipients. | | Content Type | The type of the content to send. Can be either regular text or html text.

By default it will be sent as Regular Text. | | HTML Message Content | The message's content body. | | Recipients | A comma-separated list of email addresses of the recipients. | | Regular Text Message Content | The message's content body. | | Subject | The subject of the message. | | User ID or User Principal Name | The ID or userPrincipalName of the user. |
## Advanced Parameters
| Parameter | Description | | ---------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Custom Message Headers | A JSON array of custom email headers. Can be used to trigger [transport rules](https://learn.microsoft.com/en-us/exchange/security-and-compliance/mail-flow-rules/mail-flow-rules) or an [auto-labeling policies](https://learn.microsoft.com/en-us/purview/apply-sensitivity-label-automatically).

**Note**: All header names must start with `x-` and include only lowercase letters, numbers, and hyphens.

Format:
\[
  \{
    "name":"x-custom-header",
    "value":"example"
  }
]
| | Save To Sent Items | Select to save the new mail in `Sent Items` folder. |
## Workflow Library Example [Send Mail with Microsoft Outlook and Send Results Via Email](https://library.blinkops.com/workflows/send-mail-with-microsoft-outlook-and-send-results-via-email)
Workflow Library Preview this Workflow on desktop