setting up sendmail

I'm running a website with apache and using phpBB. i am getting a php error in emailer.php what do I do to enable mailing? I installed sendmail but i have no clue if it is running nor how to configure it or even if i need to I'm somewhat a newbie to linux. I searched the docs on sendmail but I dont uinderstand them I need simple step by step instructions if anyone has the time to explain things to me.

thanks
-ozz

an update: I was reading more online documentation and readme files and almost all of the directoreis and files they mention dont exist on my system. (I did run ./Build and it did create a bunch of files) But when it comes to the config there is no /etc/mail and theres a m4 (i dont know what this is) then theres something about building config files which i cant seem to do. I'm thoroughly confused

Sendmail is incredibly cryptic and I am not sure anyone could provide you with an "easy step by step".

If you really want to learn sendmail, I suggest Sendmail, 3rd edition from O'Reilly.
http://www.bookpool.com/sm/1565928393

Of course, you will need to install it, if it is not already.

Cheers.

is there another program that will work with PHP's mail function? maybe turn my box into a mail server and use the smtp server option in php.ini?