My iiCloud account is email@example.com. I have created 2 email aliases (firstname.lastname@example.org and email@example.com). When I go to my iPad Mini 3 or iPhone 6 Plus and accessed Settings --> Messages, I see that I can only use firstname.lastname@example.org for iMessage, but not the other. So in the Settings, I can use the following for iMessage: - My phone number - Primary account: email@example.com - Email alias: firstname.lastname@example.org I cannot see email@example.com. When I attempted to add it manually, I got an error that iOS cannot verify the email. Is there a limit on how many iCloud email alias you can use for iMessage? If yes, how do I switch the email aliase to use iMessage? I.e. use firstname.lastname@example.org instead of email@example.com.