用telnet發送郵件

telnet> open localhost 25
Trying ::1...
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 centos-qmail.local ESMTP
helo qq.com
250 centos-qmail.local
mail from:[email protected]
250 ok
rcpt to:qiedizi^H
250 ok
rcpt to :[email protected]
250 ok
data
354 go ahead
k
k

.
250 ok