telnet localhost 25 can not work

[ms7.url.com.tw]

Title: �ť�

Dear Sir:   When I used this: telnet localhost 25, in Email server, the server responsed me an error message:   trying 127.0.0.1... telnet: unable to connect to remote host: conection refused   The Email server, I use qmail + ucspi-tcp + autoresponder + courier-imap.   What can I do for this? thansk   best regards,   mARS Huang