sendmail 에러좀 봐주세여..

[root@localhost mail]# /etc/rc.d/init.d/sendmail restart
Shutting down sendmail: [  OK  ]
Shutting down sm-client: [FAILED]
Starting sendmail: 451 4.0.0 /etc/mail/sendmail.cf: line 84: fileclass: 
cannot open '/etc/mail/local-host-names': Group writable directory
451 4.0.0 /etc/mail/sendmail.cf: line 510: fileclass: cannot 
open '/etc/mail/trusted-users': Group writable directory
[FAILED]
Starting sm-client: [  OK  ]
왜 이런거져..
갑자기..ㅜㅜ
도와주세요..