Problema no Vacation

Senhores,
estou com problema no vacation.
Segui todo o procedimento , inclusive o Tutorial da propria Underlinux.
E em todas as tentativas apresenta o erro abaixo.
Por favor me ajundem neste caso.

Grato
Mateus Reis

Linux: RH 7.3
Sendmail: 8.11
Vacation: 1.2.6.1

----- The following addresses had permanent fatal errors -----
|/usr/bin/vacation meulogin
(reason: service unavailable)
(expanded from: [email protected])

----- Transcript of session follows -----
smrsh: vacation.meulogin not available for sendmail programs (stat failed)
554 5.0.0 Service unavailable
procmail: Lock failure on "/var/spool/mail/meulogin.lock"