Ultimately e-mail is a relic of a time when there was some level of trust (however small) among Internet users. It's always going to be a bit of an awkward fit

Ultimately e-mail is a relic of a time when there was some level of trust (however small) among Internet users. It's always going to be a bit of an awkward fit to today's Internet where you can trust that any and every exposed service will face some attempt at abuse.