Envelope-to: userx@a.test.ex
Received: from CALLER by the.local.host.name with local (Exim x.yz)
(envelope-from <CALLER@test.ex>)
Envelope-to: userx@a.test.ex
Received: from CALLER by the.local.host.name with local (Exim x.yz)
(envelope-from <CALLER@test.ex>)