Egon (Proton OpenPGP interoperability)

[Rat Bag]

For someone already using OpenPGO encryption, to locate
and ingest Proton user's public key is a problem that
pales compared to what a Proton user must do in order to
be able to communicate securely with (what they call)
"external user", even when his or her public key is
available via WKD and is on keys.openpgp.org.

In addition, it is almost axiomatic that that "external
user" is probably not using "web-mail" but a mail-client
on his computer (Thunderbird or equivalent) and is likely
much more technically capable than the typical web-mail
Proton user.

The reluctance of Proton to automate importation of
external user's public keys makes their claim of "OpenPGP
interoperability" somewhat shallow. Increasing the number
of e-mail users that encrypt their mail in general would
probably increase their user population more than a
minuscule number of current POP/SMTP mail users they
hope to convert to web-mail use (and their service).

R.B.