Configure mail server to work with PHP

Question

My current project is a form that receives input from a user. After I receive that data, I must send a warning/report to a few email addresses, including the user who insert

Answer 1

Ok. Got it to work. Phew.

I found out the reason, after reading alot. It was regarding a relay problem with the smtp exchange server.

But I would have never got there if it wasn't for you people. xD

Thank you all. =)