I think the mail app is the most disappointing feature of any OSX I've ever used. It's just been a dumpster fire. Leaves messages in inbox when I deleted them on my iPhone, takes five minutes to quit sometimes, stops receiving mail for no reason even though it says all accounts are online, etc etc etc. I'm only using a standard Gmail. Should be easy enough, right? Has anyone been working with the 10.11 mail app? Is it any better, worse, still in development, what's the scoop?