I have 5 email accounts I run through my phone. Exchange, Gmail, outlook.com. The only thing I have the slightest irritation with is no easy way to add someone to cc or bcc. But really, if they are cc'd they can be in the to field and I can just forward the sent to the bcc person as a fyi for the rare times I need to do it. It always works, isn't laggy and is just there doing it's job, just like 90% of the rest of the phone. It may not be wizbang look at me cool, but I don't have to play with it to work, I don't have to think "will my phone do this", if it's set up, it works, and I can depend on it, and for work, that is what I need. I spend enough time dinking around with networks to make them work, I don't want to have to mess with my phone too.