ok, it doesn't have to be php, all it has to do is send it to a specified e-mail address without opening the users default e-mail client and then needing them to press send.

If the only way is...

i've made a website with a contact form, but everytime you click the send button it opens the computer default e-mail client. i know there is a way of doing this, but i dont know how.

I think it...