Email form data (use ASP?)

I am an absolute beginner & I have been building a web site ... I am designing a form for web user to email queries etc to me ... Please could someone give a step-by-step tutorial on how to email the data when the 'submit' button is clicked ... should I use ASP? Cdonts ...cdsys or ?? should I put the ASP code into a file - if so how do I do that?

I keep hearing of spammers & Nigerians grabbing my email address etc so how do I stop that?

Thanks in advance from a frustrated learner