How do I set up iCloud email on my iPhone?
If you have an iCloud account, you have an iCloud email as well. Setting this up on your iPhone is much simpler than setting up mailboxes from other email accounts. All you have to do is go to Settings -> iCloud and switch the Mail toggle to on. After that, it will show up in your Mail app.
Anonymous replied on Permalink
When I turned this on I had to set up my iCloud email. It asked for a new email address @icloud.com.