I wish to point my domain to the Outlook.com mail servers instead of forwarding mail through Google Mail.

I presently point my domain bushlodgesupply.co.za to the Google Mail servers and forward my mail to my Outlook.com email address. This is causing loss of sent and received mail. I therefore want to use the Outlook.com mail servers directly for my domain instead of routing through Google Mail. I know I need to change the MX and TXT records - what are they and how do I change these without affecting my Outlook.com email system?