+--NNNNNNNNNN-eximdsn-MMMMMMMMMM
+Content-type: message/delivery-status
+
+Reporting-MTA: dns; myhost.test.ex
+
+Action: failed
+Final-Recipient: rfc822;failure@myhost.test.ex
+Status: 5.0.0
+
+--NNNNNNNNNN-eximdsn-MMMMMMMMMM
+Content-type: message/rfc822