Envelope-from: <CALLER@myhost.test.ex>
Envelope-to: <tainted@test.ex>
P Received: from CALLER by myhost.test.ex with local (Exim x.yz)
(envelope-from <CALLER@myhost.test.ex>)
Envelope-from: <CALLER@myhost.test.ex>
Envelope-to: <tainted@test.ex>
P Received: from CALLER by myhost.test.ex with local (Exim x.yz)
(envelope-from <CALLER@myhost.test.ex>)