Can I exchange encrypted emails with people who don't use Zoho Mail?

Can I exchange encrypted emails with people who don't use Zoho Mail?

You can send and receive PGP encrypted emails with people who don't use Zoho Mail. The following are the pre-requisites:
  1. You should have their PGP public keys to send them PGP encrypted emails. Learn more
  2. You need to share your public key with them to enable them send you PGP encrypted emails.
  3. They should view the email from any client that supports OpenPGP.