Is there a system-level email address for groupname-Moderators, separate from the one for groupname-Owner?

Our restricted group's original Owner likes to keep an eye on things but no longer wants to be involved. We want members to be able to send emails to groupname-moderator(at)yahoogroups.com but this syntax doesn't seem to exist - a test email I sent bounced back as unknown. Is there a way of contacting a moderator without also contacting the owner?