UIMailConversationContext.MailEntry.Kind.none The email does not fit in a specific category. Declarationcase none See AlsoKinds of emailUIMailConversationContext.MailEntry.Kind.newsUIMailConversationContext.MailEntry.Kind.personalUIMailConversationContext.MailEntry.Kind.promotionUIMailConversationContext.MailEntry.Kind.socialUIMailConversationContext.MailEntry.Kind.transaction