Can I modify my iCloud email address without deleting and creating another?
I have an email address with my married family name. Now that I'm divorced I don't wanna lose my emails but I'd love to change it to my maiden name. Can I do that?
Create an alias for your email address with your maiden name. Then the old mails will stay in your account, but you can use the alias as your email address.
See this Help page on how to create the alias for an iCloud Mail account: http://help.apple.com/icloud/#/mm6b1a490a