What app/program is everyone using for email on the Surface Pro 4 and why? I have (2) gmail accounts and seem to find the built in email client to Windows 10 randomly brings emails and takes forever to send out read receipts. Therefore I have moved on to the trial version of mailbird and it seems serviceable. I am coming from a Mac for the past 4 years and the built in Mac Mail was not so bad. Love the surface and am hoping to find the best way to use mail on it!