+
−Subject: Mail Delivery Failure Notice
+
−From: MAILER-DAEMON@${host_name}
+
−To: ${return_path}
+
−MIME-Version: 1.0
+
−Content-Type: multipart/mixed;
+
−        boundary="${uid}/${host_name}"
+
−
+
−This is a MIME-encapsulated message.
+
−
+
−--${uid}/${host_name}
+
−Content-Description: Notification
+
−Content-Type: text/plain
+
−
+
−This message was sent to you by the mailer daemon (${package} ${version})
+
−at ${host_name}.
+
−
+
−Sorry, but your mail could not be delivered to all recipients.
+
−Delivery to the following recipients failed permanently and has been given
+
−up:
+
−
+
−@failed_rcpts
+
−
+
−This error message may give you a hint about what caused the
+
−failure:
+
−
+
−${err_msg}
+
−
+
−If you need help, write to <postmaster@${host_name}>.
+
−
+
−Your message follows attached, including all headers:
+
−
+
−--${uid}/${host_name}
+
−Content-Description: Undelivered Message
+
−Content-Type: message/rfc822
+
−
+
−@msg_headers
+
−
+
−@msg_body
+
−
+
−--${uid}/${host_name}--