Sendmail does not work on one of our RAQs.

I have tried the /usr/sbin/sendmail and still have made not progress...

What could this be?

Any help would be cool!

How do you know it's not working? Are you trying to use a cgi script (if so, what errors?). What are the symptoms.
DK

do

locate sendmail
to see if it's on your system

do
ps aux | fgrep sendmail
to see if it's running and accepting connections