To: CALLER@test.ex
Subject: Submission of mail from CALLER@test.ex directly to the XXX hosts
In-Reply-To: <E10HmaX-0005vi-00@myhost.test.ex>
+References: <E10HmaX-0005vi-00@myhost.test.ex>
Auto-Submitted: auto-replied
Message-Id: <E10HmaY-0005vi-00@myhost.test.ex>
Sender: CALLER_NAME <CALLER@test.ex>