> Is PGP still an OK way to encrypt a document to send
> securely as an attachment via email?

we use it

> Is there a "phonebook" of trustworthy PGP public keys?

    `gpg --locate-external-keys --auto-key-locate wkd ra...@psg.com`

is my fave.  half-assed baroque doc at
    https://git.rg.net/randy/randy/src/master/pgp-WKD.md
but i suggest https://wiki.gnupg.org/WKDHosting

then there are the public keyrings.  a priori they are not at all safe.
but if you can confirm signatures on keys there, ...  welcome to the web
of trust.

the key repos suck.  the classics, pool.sks-keyservers.net, are pretty
rotten, broken much of the time.  pgp.uni-mainz.de is more reliable than
most of that set.

the new hipster rings, hkps://keys.openpgp.org, also suck, just
differently.

randy

---
ra...@psg.com
`gpg --locate-external-keys --auto-key-locate wkd ra...@psg.com`
signatures are back, thanks to dmarc header butchery

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