How do I add a new email address in iCloud?
Try https://support.apple.com/en-us/HT202667
Try https://support.apple.com/en-us/HT202667
If you mean that you want to change the email address that you use for your Apple ID, see: Change your Apple ID - Apple Support
and be sure to note the following from that link:
Before you change your Apple ID email address, you need to sign out of every Apple service and device that
uses your Apple ID. If you want to use your iPhone, iPad, or iPod touch
to change your Apple ID, stay signed in to your Apple ID on just that
device.
new email address
