saslauthd认证失败，跪求指点

stream_c

saslauthd认证失败，
在telnet 127.0.0.1 110，
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
+OK Dovecot ready.
user mailt
+OK
pass 1qaz@WSX
-ERR Authentication failed.

配置/etc/sysconfig/saslauthd
MECH=pam

请高手指点，可能哪个地方出了问题？

stream_c

回复 1# stream_c


    附上系统日志

Jan  7 03:42:25 mail saslauthd[1400]: do_auth         : auth failure: [user=mailt] [service=imap] [realm=] [mech=shadow] [reason=Unknown]
Jan  7 03:43:36 mail saslauthd[1400]: server_exit     : master exited: 1400
Jan  7 03:43:36 mail saslauthd[2153]: detach_tty      : master pid is: 2153
Jan  7 03:43:36 mail saslauthd[2153]: ipc_init        : listening on socket: /var/run/saslauthd/mux
Jan  7 03:43:40 mail saslauthd[2153]: do_auth         : auth failure: [user=mailt] [service=imap] [realm=] [mech=pam] [reason=PAM auth error]
Jan  7 03:58:50 mail saslauthd[2153]: server_exit     : master exited: 2153
Jan  7 03:58:50 mail saslauthd[2278]: detach_tty      : master pid is: 2278
Jan  7 03:58:50 mail saslauthd[2278]: ipc_init        : listening on socket: /var/run/saslauthd/mux