# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2019-03-22 19:08:58 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/1109170120142790661) RT @charlesarthur: To check whether this is true, I tried. It spots previously-used email addresses, even if you use a different postcode a…