SBCGlobal email not working on the iPhone are generally caused due to outdated software or any server error. You have to use the steps mentioned below to troubleshoot SBCGlobal email now working errors on iPhone:
Reset your iPhone: You have to turn off your iPhone and then turn it back on after 5 minutes for restoring the default setting.
Sign out of your SBCGlobal email: Open your SBCGlobal account settings and then log out from your account. After that, you must manually type your email details to sign in.
Update the email app: You must make sure to connect your phone to the internet and then download necessary software updates before accessing your SBCGlobal account.
If you still face not working error after implementing the solutions, you can call the SBCGlobal customer care number to ask for technical assistance.