From user@testserver
From: Mail Delivery System <postmaster-dsn@testserver>
To: <user@testserver>
Subject: Mail delivery failed: returning message to sender
Message-ID: *
Date: *
X-Failed-Recipients: fail@testserver, 
Auto-Submitted: auto-replied

Delivery to the following recipient(s) failed permanently:

  - fail@testserver


----- Technical details -----

- "false" (PIPE) failed permanently with error:
    exit status 1


----- Original message -----

Received: from localhost (authenticated as user@testserver)
	by testserver (chasquid)
	(over *
	(envelope from "user@testserver")
	; *
Date: *
From: Mailer daemon <somewhere@horns.com>
Subject: I've come to haunt you

Muahahahaha


