Cant forward meeting invites from Outlook

I am trying to forward a meeting invite, which I received, to a team member who was not invited, however when do so the message is not delivered and I get an error notification saying

"Your message did not reach some or all of the intended recipients. The following recipient(s) cannot be reached:

      'email address removed for privacy reasons' on 22/04/2024 11:25

            554 Unauthorized sender address."

How do I resolve this? 

Thanks.