I have a question
My IPhone 4s mail does work when I'm on WiFi but when I'm on 3g it doesn't it says than my username or password isn't the right one but it is. It's there a solution to that problem ?
iPhone 4S, iOS 7.1.2
Check with your email provider. Some require different settings when connecting
via cellular service than when connecting via wifi. If you post your email provider
and country, some one may chime in with the correct settings. Best/fastest
course of action is to check their website or call them.