/usr/lib/sendmail -bd -q1h  라고 치면요,
554 5.0.0 /etc/mail/sendmail.cf: line 130: readcf: map virtuser: class btree not avaliable
554 5.0.0 /etc/mail/sendmail.cf: line 133: readcf: map generics: class btree not avaliable
554 5.0.0 /etc/mail/sendmail.cf: line 136: readcf: map access: class btree not avaliable
 라고 나와요. 
 빨리 켜야하는데... 뭐가 잘못된는지 모르겠어요
컴파일이 잘못됬나... 
 sendmail.cf 에 가서 에러난 라인을 보면
  # Virtual user table (maps incoming users)
Kvirtuser btree /etc/mail/domainaliases.db
 # Generics table (mapping outgoing addresses)
Kgenerics btree /etc/mail/useraliases.db
 # Access list database (for spam stomping)
Kaccess btree -o /etc/mail/access
 
 고수님들 도와주세요~