Subject: Delivery Status Notification (Failure)

From: "Mail Delivery System" <[email-masked]>
Date: 05 Aug 2007 06:26:17 -0400

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'

Subject: Returned mail: see transcript for details
From: [email-masked]
To: [email-masked]
Date: Sun, 5 Aug 2007 06:13:35 -0400