Auto-Submitted: auto-replied
From: Mail Delivery System <Mailer-Daemon@test.ex>
To: CALLER@test.ex
+References: <E10HmaX-0005vi-00@myhost.test.ex>
Content-Type: multipart/report; report-type=delivery-status; boundary=NNNNNNNNNN-eximdsn-MMMMMMMMMM
MIME-Version: 1.0
Subject: Mail delivery failed: returning message to sender