Received: from [10.0.0.1] (helo=test.host ident=CALLER)
by myhost.test.ex with esmtpa (Exim x.yz)
(envelope-from <userx@some.domain>)
Received: from [10.0.0.1] (helo=test.host ident=CALLER)
by myhost.test.ex with esmtpa (Exim x.yz)
(envelope-from <userx@some.domain>)