--- /dev/null
+From userx@test.ex Tue Mar 02 09:44:33 1999
+Received: from [127.0.0.1] (port=1111 helo=rhu.barb)
+ by myhost.test.ex with esmtp (Exim x.yz)
+ (envelope-from <userx@test.ex>)
+ id 10HmaX-0005vi-00
+ for userx@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
+interface-port: 1225
+
+This is a test message.
+
+From userx@test.ex Tue Mar 02 09:44:33 1999
+Received: from [127.0.0.1] (port=1112 helo=rhu.barb)
+ by myhost.test.ex with esmtp (Exim x.yz)
+ (envelope-from <userx@test.ex>)
+ id 10HmaY-0005vi-00
+ for userx@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
+interface-port: 1226
+
+This is a test message.
+