My wife and I each have an iphone. We use Google for our email, and our calendars (we have 3 calendars, that we share), and our contacts. When I go into my mac os, I set up GMAIL, and I am only seeing 1 of the 3 calendars. I know that on my iphone I did not select GMAIL, but I choose MS Exchange, and used m.google.com for the server, and that allowed me to see real time my 3 calendars that are shared. How do I set this up on the mac? When I choose exchange setup over gmail, it says my firstname.lastname@example.org is not a valid exchange email address.