You can use phpmailer. If you google, you will find a lot of example already done for you. Then, when you click send, in the DATA, you set the data that you need to send to the php form. it should look like:
"email="&emailConstruct&"&"&"name="&nameConstruct.... etc
and in the url, the url of the php in your server.
Note, you can use any php form online that you find.