**** 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 test [V4NET.0.0.0]\r
250 OK\r
451 Temporary local problem - please try later\r
+550 Administrative prohibition\r
+550 Administrative prohibition\r
+550 Administrative prohibition\r
221 the.local.host.name closing connection\r