Meeting invites are created by the host's own connected calendar, so the host's email address is visible to every external guest. Guests can take that address and reply to the rep directly instead of staying in the intended booking or support flow.
Requested behaviour: let admins send the guest's meeting notification from a neutral address rather than the host's –
noreply@yourdomain.com
where a custom email domain is verified, and
notifications@chilipiper.com
where one isn't.