From CALLER@test.ex Tue Mar 02 09:44:33 1999
-Received: from CALLER by mail.test.ex with local-smtp (Exim x.yz)
+Received: from CALLER (helo=test)
+ by mail.test.ex with local-smtp (Exim x.yz)
(envelope-from <CALLER@test.ex>)
id 10HmaX-0005vi-00
for x@local;