220 myhost.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000
250 OK
250 Accepted
550 Administrative prohibition
354 Enter message, ending with "." on a line by itself
250 OK id=10HmaX-0005vi-00
221 myhost.test.ex closing connection
451 Temporary local problem - please try later