From CALLER@test.ex Tue Mar 02 09:44:33 1999
Return-path: <CALLER@test.ex>
Envelope-to: usery@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 10HmaY-0005vi-00
	for usery@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
Message-Id: <E10HmaY-0005vi-00@the.local.host.name>
From: CALLER_NAME <CALLER@test.ex>
Date: Tue, 2 Mar 1999 09:44:33 +0000

Test message
From the deep abyss
From
out of nowhere
Fromage please
from is case sensitive
From: is how headers start