DSN Failed

I am receiving 2-3 emails a day from All in One WP Security. I have searched to find where to change this setting. The email address that it is trying to send to is not valid and I thought I had removed it from the site everywhere.

Any guidance would be appreciated.

——– Original Message ——–
Subject: DSN: failed (All In One WP Security – File change detected! Sa)
Date: 2020-01-11 12:44
From: Mailbot for moltobellaweddings.com <>
To: [email protected]

This is a Delivery Status Notification (DSN).

I was unable to deliver your message to
[email protected].

I said
RCPT TO:<[email protected]>

And they gave me the error;
550 No Such User Here

Reporting-MTA: dns; moltobellaweddings.com
Final-Recipient: RFC822; [email protected]
Action: failed
Status: 5.0.0