alan@raven:~$ telnet lizella.net 25
Trying 64.178.249.164...
Connected to lizella.net.
Escape character is '^]'.
220 barnowl.lizella.net ESMTP Postfix
mail from: foo@bar.com
250 2.1.0 Ok
rcpt to: alan@idlehourclub.com
554 5.7.1 <alan@idlehourclub.com>: Relay access denied