Is it possible to change the settings to hide copied-in email addresses on notifications.

Is it possible to change the settings to hide copied-in email addresses on notifications.

We have quite a large project membership for a community group. We would like to be able to email them advisories of posts in the forums and meetings but we would prefer not to disclose their email addresses to others in the group.

Is it possible to change the settings so the email addresses of others receiving the mail do not show?