**** This is not for real!
220 myhost.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000\r
+250 myhost.test.ex Hello test [V4NET.9.8.7]\r
250 OK\r
550 No such user here\r
250 Reset OK\r
550 No such user here\r
221 myhost.test.ex closing connection\r
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 [V4NET.11.12.13]\r
250 OK\r
250 Accepted\r
354 Enter message, ending with "." on a line by itself\r