Hi Pat_112, Yes, you are right, the “Hide Attendee List” option will keep recipient from viewing the complete attendee list, other attendees seem to be added to "BCC" attendee box of the meeting, I have just tested it, the outcome is: A(organizer) sends a meeting to B,C and D, B can only view A and B in the attendee list, and C can only view A and C in the attendee list, it is the same for ... More @Wikipedia
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