ActivePerl 5.8 – Sendmail.

Hi, I downloaded a program called formmail which is used like contact us form or feedback form. I have installed activeperl 5.8 on my computer and i have to point the /usr/lib/sendmail in the coding file, but what i have seen is i really cant find any sendmail program in the perl installed directory. I have no knowledge about programming, please suggest what i could do to solve this problem as i wanted to put a feedback form on a website.
Regards.