# qmailctl stat
/service/qmail-send: up (pid 26420) 2015 seconds
/service/qmail-send/log: up (pid 26421) 2015 seconds
/service/qmail-smtpd: up (pid 28014) 1710 seconds
/service/qmail-smtpd/log: up (pid 26425) 2015 seconds
/service/qmail-pop3d: up (pid 26500) 2004 seconds
/service/qmail-pop3d/log: up (pid 26434) 2015 seconds
messages in queue: 6
messages in queue but not yet preprocessed: 0
用telnet访问本地25号端口:
# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.
显然被拒绝了,