iCloud email won’t send? Here's what to check to fix it

Email may seem quaint to some people, but billions upon billions of messages are sent that way every day. (Some we even want to receive!) Apple’s iCloud service includes an email address and the ability to send and receive email. But you may occasionally be stymied in sending a message without enough of a detailed error message to know why iCloud rejected it.Here are the most common reasons:Invalid iCloud address: Apple can’t check whether an email address is legitimate at other dom