I assumed that iCloud mail would have threaded messaging. Since Apple Mail, iOS (iPhone, iPad, etc) all have threaded messaging. From what I see iCloud mail doesn't have threaded messaging? That is a serious deal breaker for a person like me trying to switch from gmail to iCloud mail. I've had threaded messaging for 4 years on gmail? Am I missing a setting? This is on my friends apple mail: This is on my friends iCloud mail: I guess I don't understand why apple would release icloud mail without a feature that iOS and apple mail both have when they are designed to work together?