sendmail 데몬시작시 에러입니다.

데몬을 재시작하면 아래 에러메시지가 출력됩니다.

root@mail init.d]# ./sendmail restart
Shutting down sendmail:                                    [  OK  ]
Shutting down sm-client:                                   [FAILED]
Starting sendmail: 554 5.0.0 /etc/mail/sendmail.cf: line 153: readcf: map mailertable: class hash not available
554 5.0.0 /etc/mail/sendmail.cf: line 156: readcf: map virtuser: class hash not available
554 5.0.0 /etc/mail/sendmail.cf: line 161: readcf: map access: class hash not available
Warning: Option: AuthMechanisms requires SASL support (-DSASL)
Warning: Option: AuthOptions requires SASL support (-DSASL)
                                                           [FAILED]
Starting sm-client:                                        [  OK  ]
[root@mail init.d]#

위의 문제는 어디에 문제가 있을까요?

답변좀 부탁드립니다.