221 mail.test.ex closing connection\r
220 mail.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000\r
250 mail.test.ex Hello CALLER at test\r
221 mail.test.ex closing connection\r
220 mail.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000\r
250 mail.test.ex Hello CALLER at test\r