--- /dev/null
+From CALLER@myhost.test.ex Tue Mar 02 09:44:33 1999
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=myhost.test.ex)
+ by myhost.test.ex with esmtp (Exim x.yz)
+ (envelope-from <CALLER@myhost.test.ex>)
+ id 10HmbM-0005vi-00
+ for e@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
+Received: from CALLER by myhost.test.ex with local (Exim x.yz)
+ (envelope-from <CALLER@myhost.test.ex>)
+ id 10HmbL-0005vi-00
+ for e@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
+From: nobody@example.com
+Message-Id: <E10HmbL-0005vi-00@myhost.test.ex>
+Sender: CALLER_NAME <CALLER@myhost.test.ex>
+Date: Tue, 2 Mar 1999 09:44:33 +0000
+
+content
+
--- /dev/null
+From CALLER@myhost.test.ex Tue Mar 02 09:44:33 1999
+Received: from the.local.host.name ([ip4.ip4.ip4.ip4] helo=myhost.test.ex)
+ by myhost.test.ex with esmtp (Exim x.yz)
+ (envelope-from <CALLER@myhost.test.ex>)
+ id 10HmbO-0005vi-00
+ for f@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
+DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=test.ex;
+ s=sel; h=From; bh=gs+F4Uhr+N4qZhWyfctULkCwprl/tvOnzqNhsmpAFW4=; b=A3l0nyvB3OK
+ NuIDfQJg0wynUUH4AWSRdDUNmhkTNo2RW/ifLCWBky6AXfkaHENJRewncjoVcn92d0cbTF4gDEhUi
+ EbuJRdYja2OJT25BUgLfrxQnNnYB7TB9PcWG3Mrmq0fGRgCNngyh5gLHGqu9tBllw5Pdigbq2EAV0
+ t2W/iI=;
+Received: from CALLER by myhost.test.ex with local (Exim x.yz)
+ (envelope-from <CALLER@myhost.test.ex>)
+ id 10HmbN-0005vi-00
+ for f@test.ex; Tue, 2 Mar 1999 09:44:33 +0000
+From: nobody@example.com
+Message-Id: <E10HmbN-0005vi-00@myhost.test.ex>
+Sender: CALLER_NAME <CALLER@myhost.test.ex>
+Date: Tue, 2 Mar 1999 09:44:33 +0000
+
+..content
+