If you reply to the text message, it will cancel all alerts going to that number. So if you are signed up to get alerts on 3 domains and only want to cancel on

If you reply to the text message, it will cancel all alerts going to that number. So if you are signed up to get alerts on 3 domains and only want to cancel one, you'll have to send one unsubscribe (which will cancel all 3) and then re-add the ones you still want to be active. Not ideal in that edge case, I know, but I wanted to make sure unsubscribing was easy in case someone got cheeky and starting signing other people up.