# Email sender for the Notification Channel

In Data One, the sender of the email used to send notifications
 configured in the Notification Channel is set in the **Username**
 field. This 
field is detailed on the [Configuring the default Email Notification Channel](/data-mover-1.21/notification-channels/configure-the-default-email-notification-channel.md) and [Configuring a new Email Notification Channel](/data-mover-1.21/notification-channels/configure-a-new-email-notification-channel.md) pages.

If, for any reason, you need to define a different sender, follow these steps:

1. Go to **Setup** → **Advanced Settings**.
2. Click the **NEW** button in the top-right corner of the screen.
3. Enable the **Click to add a new module/section** toggle.
4. In the **Module** field, enter **ghibli-rest**.
5. In the **Section** field, enter **generic-config**.
6. In the **Property Name** field, enter **notif-chan-mail-from**.
7. In the **Property Value** field, enter the **email address** that will send the email.
8. Click **CONFIRM** to save. 

The new property will be **applied immediately**. You do not need to restart the CEMAN.

Setting this property solves the SMTPSenderFailedException error appearing when the SMTP server rejects the message during the sending process.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.primeur.com/data-mover-1.21/how-to.../...-fine-tune-data-mover-with-advanced-settings/email-sender-for-the-notification-channel.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.