From CALLER@test.ex Tue Mar 02 09:44:33 1999
Return-path: <CALLER@test.ex>
Envelope-to: userz@test.ex
Delivery-date: Tue, 2 Mar 1999 09:44:33 +0000
Received: from CALLER by the.local.host.name with local (Exim x.yz)
	(envelope-from <CALLER@test.ex>)
	id 10HmbA-0005vi-00
	for userz@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
Date: Tue, 2 Mar 1999 09:44:33 +0000
Message-Id: <E10HmbA-0005vi-00@the.local.host.name>
From: CALLER_NAME <CALLER@test.ex>

Second test message, no prefix.

07-Mar-2000 12:21:52 +0100,ddd;000000000000-00000000
Return-path: <CALLER@test.ex>
Envelope-to: mbx_userz@test.ex
Delivery-date: Tue, 2 Mar 1999 09:44:33 +0000
Received: from CALLER by the.local.host.name with local (Exim x.yz)
	(envelope-from <CALLER@test.ex>)
	id 10HmbB-0005vi-00
	for mbx_userz@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
Date: Tue, 2 Mar 1999 09:44:33 +0000
Message-Id: <E10HmbB-0005vi-00@the.local.host.name>
From: CALLER_NAME <CALLER@test.ex>

Test message with mbx_ prefix
From CALLER@test.ex Tue Mar 02 09:44:33 1999
Return-path: <CALLER@test.ex>
Envelope-to: userz@test.ex
Delivery-date: Tue, 2 Mar 1999 09:44:33 +0000
Received: from CALLER by the.local.host.name with local (Exim x.yz)
	(envelope-from <CALLER@test.ex>)
	id 10HmbC-0005vi-00
	for userz@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
Date: Tue, 2 Mar 1999 09:44:33 +0000
Message-Id: <E10HmbC-0005vi-00@the.local.host.name>
From: CALLER_NAME <CALLER@test.ex>

Second test message, no prefix.