Turn Off "SecurePass Email" feature

Turn Off "SecurePass Email" feature

Hi,

Kudos for adding some good features recently.

That said, while I can see the "securepass email" being very useful for many I see it as a way for users to annoy clients and possibly lose content of email, or at the very least make received email less searchable. 

Is there a way to limit or turn off the SecurePass Email feature?