安装postfix能发不能收.急救！

hb_li_520

装了N遍了，提供思路呀！
[root@approach log]# telnet localhost 110
Trying 127.0.0.1...
Connected to approach.cn (127.0.0.1).
Escape character is '^]'.
+OK approach.cn Cyrus POP3 v2.1.16 server ready <2442692966.1106987034@approach.cn>;
USER virtualuser@approach.cn
+OK Name is a valid mailbox
PASS testpw
-ERR [AUTH] Invalid login
错误如下，密码通不过验证，但试过几个用户都存在同样的问题。
不知道是何种原因！谢谢了。

hb_li_520

咋没有人回答，提供一下思路也好呀！
Jan 29 17:13:53 approach ctl_cyrusdb[3206]: done checkpointing cyrus databases
Jan 29 17:13:53 approach master[3204]: process 3206 exited, status 0
Jan 29 17:14:21 approach master[3208]: about to exec /usr/cyrus/bin/pop3d
Jan 29 17:14:21 approach pop3[3208]: executed
Jan 29 17:14:21 approach pop3d[3208]: accepted connectionJan 29 17:14:42 approach pop3d[3208]: badlogin: approach.cn[127.0.0.1] plaintext virtualuser@approach.cn SASL(-13): authentication failure: checkpass failed
Jan 29 17:21:48 approach master[3204]: got SIGHUP