Subject: Mail delivery failed: returning message to sender
From: Mail Delivery System <[email-masked]>
To: [email-masked]
Date: Sun, 07 May 2023 15:28:43 +0430

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  [email-masked]
    LMTP error after RCPT TO:<[email-masked]>: 552 5.2.2 <[email-masked]> Quota exceeded (mailbox for user is full)