Where can I find the apple suport email address ?

Look up the store, and its contact information (whatever they offer) here - http://www.apple.com/retail/

As far as I know though, the stores only offer a telephone number, or you can make an appointment and come in.

Apple does not provide support via email.

when it became a thing that the wast majority of emails sent in the world was spam

most companies began using other means of communication with customers