If you send an encrypted message to a recipient whose email setup doesn't support encryption, you're offered the option of sending the message in an unencrypted format.
Ọ bụrụ na iziga ozi ezoro ezo na onye nnata nke setupụ email adịghị akwado ntinye ya, a na-enye gị nhọrọ nke izipụ ozi ahụ na nhazi ezoro ezo.