I can't believe there is no way to delete ALL SMS messages at once. Am I missing something? I receive a lot of SMS messages from alerts and such. It takes me a long time to tap / swipe each message and delete them. Since the messages come from an email address instead of another phone it assigns a unique id to the message so you can reply to it and it is not smart enough to group messages by email address. Each message is its own 'conversation' that must be deleted separate from the rest.