I have always used gmail on web (browser), but now with the new conversation view in Mail I finally decided to try it. So after synching my gmail account in Mail, I went to see how my account looks on gmail.com now and, lo and behold, all stars next to my emails vanished. And that was about 7 years/2GBs worth of emails with different stars . I tried re-starring some of my emails and after another sync in Mail they got removed again on gmail.com What am I doing wrong? I want to use Mail, but I still want my starred emails to show as starred on www.gmail.com.