estou seguindo: http://www.linuxit.com.br/section-viewarticle-666.html
e o bicho num vai, apresentando uma falha

[root@localhost /]# /etc/rc.d/init.d/sendmail restart
Shutting down sendmail: [ OK ]
Shutting down sm-client: [FAILED]
Starting sendmail: [ OK ]
Starting sm-client: [ OK ]