Forward a meeting without host or other invitees seeing the new invitee
I'm a consultant and work with several clients. My clients require me to have an email address and calendar on their domain. Some clients even require me to use their hardware, which makes it impossible to integrate or combine calendars. In my attempt to control chaos, I maintain a separate "master calendar" that includes every meeting I'm invited to across all clients. Maintaining this calendar currently requires me to manually add a meeting every time a client invites to a meeting using their own email/calendar domain.
I would like to be able to forward emails to my master calendar, but not have my master calendar account show up as an additional attendee in the original invitation. Sort of a "silent" or "observer" invitee.