pop3접속은 되는데 로그인이랄까요..안되서요.

[root@chocozenn /]# telnet localhost pop3
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
+OK Qpopper (version 4.0.8) at chocozenn.com starting.
user chocozenn
+OK Password required for chocozenn.
pass *******

-ERR [SYS/PERM] Unable to process From lines (envelopes) in /var/mail/chocozenn; change recognition mode or check for corrupted mail drop.
+OK Pop server at chocozenn.com signing off.
Connection closed by foreign host.
[root@chocozenn /]#

pop3접속은 되는데요. id와 pass로 접속을 하면 아래처럼 에러가 나고 끊깁니다.

아이디와 패스워드는 안틀리게 넣었습니다..흠흠..왜 그럴까요??