How can I change my sender name in iCloud email? I want to correct how my 'sender' name appears when I write mail with my iCloud account. 

For some reason, iCloud shows my first name in all caps &amp; I can't edit it.
iCloud is linked directly to your Apple account. You should be able to edit the details on your Apple ID here: https://appleid.apple.com/cgi-bin/WebObjects/MyAppleId.woa/