Docex, under the auspices of the South African Post Office Trust Centre, is giving each of its members a free Docex Digital Certificate as of 1st August 2001.   A digital certificate is nothing more than a legally acceptable electronic Identification of the user, that resides on the users computer or a smart card. This is critical for secure e-mail between Docex members and for any business transaction done.   The certificate ensures that you know who you are communicating with and that they know for sure who you are.