Hot answers tagged pgp
If the correspondent's key is posted to a public key server, e.g. pgp.mit.edu, your email client can probably find it. If not, they have to supply it. (You should consider posting your public key on a key server, too, and read about PGP/GPG key signing: https://www.google.com/search?q=pgp+key+signing because a signed key is less susceptible to attacks that ...
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