[americanriver]

There are plenty of email users on IMAP, and they use web mail to host mail storage. The IMAP clients can do S/MIME (or PGP I suppose).

The bigger problem is trustworthy user discovery service i.e. a directory to exchange public keys. This exists at an enterprise level (active directory) but not globally.

[3c6bYDXLMj]

Usually anyone that buys into the viability of PGP email will also tell me with a straight face that the MIT keyserver is completely appropriate for civilians.