Please help me ! About pop3 authorization?

[晓峰]

my qmail had been installed successfully.(qmail-1.03,ucspi-tcp-0.88.tar.gz,checkpassword-0.81.tar.gz, daemontools-0.70.tar.gz) i can send mail by telneting port 25. but i cant not pass the pop3 authorization. my pop3 server is running  normally,and i cat telnet port 110. pop3 authrization use checkpasswd����authorization failed�� pop3 authrization use vchkpw of Vpopmail����authorization failed�� i have tried a lot of checkpasswd programes(vpopmail.vmailmgr,authpop����) ,i also reinstall qmail several times, but the problem exist yet . please help me ,or give me some advises. thank you!   $ telnet 192.168.0.1 110 Trying 192.168.0.11... Connected to 192.168.0.11. Escape character is '^]'. +OK <[EMAIL PROTECTED]> user 7961 (this is system account) +OK pass axdfas (password for 7961) -ERR authorization failed Connection closed by foreign host. i had tried to use tcpserver or inet to starting the qmail.but i met the same problem. my pop3's tcpserver script: /usr/local/bin/tcpserver -v -R 0 pop-3 /var/qmail/bin/qmail-popup p01.power1.c m \ /bin/checkpassword  /var/qmail/bin/qmail-pop3d Maildir & (all in one line) my inet.com script: pop-3 stream tcp nowait root /var/qmail/bin/qmail-popup qmail-popup \ p01.powe 1.com /home/vpopmail/bin/vchkpw /var/qmail/bin/qmail-pop3d Maildir(all in one line)