Yes, you can configure PreOrder Now (PON) to send emails using your own email address.
Here's a video walkthrough on how to change the Sender Email Address:
From the Settings section, click on the Email tab.
Scroll down to the "Sender Email Address" section.
Enter the email address you want to use and click on the Verify button.
Check your inbox for a verification email, and click the link in the email to complete the verification.
Once completed, all emails from the app will be sent using your email address.
If you encounter any issues while verifying your email, take a look at this helpful article for more assistance.