I keep getting an email as follows. I don't care that the email isn't delivered. How do you get your server to stop trying to resend it and sending me emails as a result.
This is an automatically generated Delivery Status Notification.
Delivery to the following recipients was aborted after 6.5 hour(s):
* email address here (redacted)
Reason: Temporary Failure
Reporting-MTA: dns; <Edited>
Received-From-MTA: dns; <Edited>
Arrival-Date: Sun, 31 May 2020 19:45:45 +0000
Final-recipient: rfc822; <Edited>
Diagnostic-Code: smtp; 450 4.2.2 <Edited>: user is overquota
Last-attempt-Date: Mon, 01 Jun 2020 02:13:09 +0000
the person you are sending to - their mailbox is full. They will need to delete emails to clear up some space.