From: Mail Delivery Subsystem <
To: ' '<
Subject: Delivery Status Notification (Failure)
Date: Thu, 28 Feb 2019 22:31:05 +0000
Attachments: icon.png
Embedded: mime_part_2.eml
Error
Icon Address not found
Your message wasn't delivered to
because the address
couldn't be found, or is unable to receive mail.
The response from the remote server was:
550 Rule imposed mailbox access for refused: user
invalid
EFTA00491354