How to configure mailx to support Gmail?

How can I set up mailx to send messages to my Gmail account? What I do now is run the command: mail -s "hello kid" mymail@gmail.com It freezes and does nothing. I tried some variations, but all of them just froze dead in my terminal. Is there anything I need to configure in mailx before actually using mail? There were different options found on the Internet, like making a .mailrc and other config files, but I got nowhere. Can someone provide me with more information on the subject?