Mutt Gmail config

[M.R.P. zensky]

Hello running mutt on ubuntu I am wanting to set up mutt to work with gmail. I have two instructional for doing this butt their instructions differ. 
One  says to enter           sudo touch $MAIL
                                        sudo chmod 660 $MAIL
                                         sudo chown ‘whom’:mail $MAIL

The other says to do the following - mkdir -p~/mutt/cache/headers
                                                         Mkdir ~/.mutt/cache/bodies
                                                         Touch ~/.mutt/certificates.
Which config should I use  or if anyone has an alternate cleaner way to configure mutt with gmail let me know.