Read the full story at: http://www.guardian.co.uk/technology/2008/oct/08/google.email
“An altruistic Google employee has come up with a system that will block -or at least make you think twice about – the kind of message you will only regret the next day. Mail Goggles, which can be set to spring into action late at night and at weekends, asks emailers to answer a series of short mathematical posers before sending their message off. The idea, according to Gmail engineer Jon Perlow, is to help people who are a little too tired and emotional to foresee the consequences of their actions.”
