550-This is a very long blacklisting message, continuing for ages and ages and\r
550-certainly being longer than 128 characters which was a previous limit on\r
550 the length that Exim was prepared to handle.\r
+503-All RCPT commands were rejected with this error:\r
+503-host is listed in rbl3.test.ex with value 127.0.0.3\r
+503-This is a very long blacklisting message, continuing for ages and ages and\r
+503-certainly being longer than 128 characters which was a previous limit on\r
+503-the length that Exim was prepared to handle.\r
503 valid RCPT command must precede DATA\r
500 unrecognized command\r
500 unrecognized command\r
354 Enter message, ending with "." on a line by itself\r
250 OK id=10HmaX-0005vi-00\r
221 the.local.host.name closing connection\r
+
+**** SMTP testing session as if from host V4NET.11.12.15
+**** but without any ident (RFC 1413) callback.
+**** This is not for real!
+
+220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000\r
+250 the.local.host.name Hello a.b [V4NET.11.12.15]\r
+221 the.local.host.name closing connection\r
+
+**** SMTP testing session as if from host V4NET.13.13.2
+**** but without any ident (RFC 1413) callback.
+**** This is not for real!
+
+220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000\r
+550 <a@b> Unrouteable address\r
+221 the.local.host.name closing connection\r