Subject: Delivery temporarily delayed
From: Mail Delivery Subsystem <[email-masked]>
To: [email-masked]
Date: Tue, 02 Jun 2026 10:01:00 +0000

Delivery Status Notification.
Final-Recipient: rfc822; [email-masked]
Action: delayed
Status: 4.2.2
Diagnostic-Code: smtp; 452 4.2.2 Mailbox full