I'm interested in djb's IM2000 [1] proposal. Change the underlying model from a postal service one; adapt the infrastructure to the use cases. "Plain text" is n

I'm interested in djb's IM2000 [1] proposal. Change the underlying model from a postal service one; adapt the infrastructure to the use cases. "Plain text" is not the problem with SMTP. [1] http://cr.yp.to/im2000.html http://cr.yp.to/im2000.html