Alice and Bob both use encrypted email -> communication is safe.
Alice uses encrypted email, Bob is in a country over which Alice’s adversary has no jurisdiction and Bob uses a regular email service -> communication is safe.
Alice uses encrypted email, Bob uses regular email but Alice’s adversary has no idea that Alice talks with Bob because she is the only one being watched -> communication is safe.
Encrypted email is the most pokiness thing. Send an email to anyone not on their server and it is plaintext and anyone can read it.
Alice and Bob both use encrypted email -> communication is safe.
Alice uses encrypted email, Bob is in a country over which Alice’s adversary has no jurisdiction and Bob uses a regular email service -> communication is safe.
Alice uses encrypted email, Bob uses regular email but Alice’s adversary has no idea that Alice talks with Bob because she is the only one being watched -> communication is safe.