I just received your message. I am really excited to start using this for my medical billing business. When someone receives an encrypted message from me, and they do not use FlowCrypt, how do they open the email? Sorry I am very new to this.
If they have no compatible plugin, you will be asked to protect the message with a one time password.
You'll need to communicate that password to the recipient(through some other means - do not use email). They receive a link, and will need that password to decrypt the message online.