Problems Sending activation email users

I need help when you sign up on my page, the activation email sent it to me rather than the user, I’m using the plugin SendGrid because my page is stored in Microsoft Azure and by default does not have mail services like another servers, I install the plugin SendGrid to be sent activations mails to my new users but all emails are sent to me and I need you to help me please. Thank you. If you like to visit my page is: http://www.codespark.mx
I don’t speak very well the english, please forgive me if I do not write something right.