UBB.threads PHP Forum Software Community Forums UBB.threads Version 7/8 Support Hide email addys retrospectively

Hi
I think I've been right through the cp - but I can't find the answer.

Is there a way to hide ALL email addresses?

i.e. members who are new registrants may choose to hide their email address ...but older members may still have their email addresses set as visible.

(Just trying to protect them from spammers.)

Cheers,
d.