550 host in DNS list rbl.test.ex: This is a test blacklisting message\r
550 host in DNS list rbl.test.ex: This is a test blacklisting message\r
221 myhost.test.ex closing connection\r
+
+**** SMTP testing session as if from host 60.60.60.60
+**** 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
+250 OK\r
+250 Accepted\r
+550 Administrative prohibition\r
+221 myhost.test.ex closing connection\r