Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 19 Aug 2025 18:34:46 +0530

The following message to <[email-masked]> was undeliverable.
The reason for the problem:
5.1.0 - Unknown address error 550-'5.1.1 <[email-masked]> User unknown; rejecting'

Subject: Get Ready for a Cool New Experience in Copenhagen!
From: NW Production <[email-masked]>
To: [email-masked]
Date: Tue, 19 Aug 2025 15:04:37 +0200