I have a few e-mail accounts, mostly GMails, but also my main account, which is an "att.net" e-mail (which is powered by Yahoo!). The stock mail app won't accept my credentials when I try to put in my ATT email and password into either the Yahoo or POP3 account options. So, I've had to download the Yahoo mail app, which works great, but I kinda want one universal app for my e-mail accounts, rather than having to switch between two apps. Is there a fix for this? If not, are there any good e-mail apps that work well with Yahoo/ ATT.net e-mail accounts?