250 OK\r
550 Administrative prohibition\r
221 myhost.test.ex closing connection\r
+
+**** SMTP testing session as if from host ip4.ip4.ip4.ip4
+**** but without any ident (RFC 1413) callback.
+**** This is not for real!
+
+220 myhost.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000\r
+252 Administrative prohibition\r
+421 myhost.test.ex lost input connection\r