iPad
Q: How to change username
How do I change username found in Mail setting lookup?
iPad 2 Wi-Fi
Posted on Jul 25, 2016 9:49 AM
by poikkeus1,Apple recommended
Wireless
You can change the user name globally...
Change the OS X user account name and home folder name on your Mac - Apple Support
...but you will have to contact your email provider to change the Mail setting lookup.
Mail settings you might need from your email provider - Apple Support
Posted on Jul 25, 2016 10:55 AM