I am using Blue mail last 6 month.my own experience with this app is incredible because before this app, i am using gmail after that mail app but after use this app I have forgotten all other app for mail collection.First thing, my company mail(web-mail) not configured in any mail then I searched in play store than lastly I found it then I used this one and not believe just in one time that my mail configured successfully.
So, Lastly I am just saying this app is amazing if you have not this app please installed this app after using this one .you forgot all mail app .