+> Defined macro 'TESTING_MACROS'
+> (userx@test.x, usery@test.ex)
+>
+220 myhost.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000\r
+250 myhost.test.ex Hello CALLER at test\r
+250 OK\r
+250 Accepted\r
+250 Accepted\r
+354 Enter message, ending with "." on a line by itself\r
+250 OK id=10HmaY-0005vi-00\r
+221 myhost.test.ex closing connection\r
+> from: Himself <himself@there.tld>
+> subject: The subject is not the object
+> message_body_size=76
+> message_id=10HmaY-0005vi-00
+> message_exim_id=10HmaY-0005vi-00
+> max_received_linelength=75
+> recipients=userx@test.x, usery@test.ex