A user with Outlook 2003 using our Exchange server will send out a meeting
request to users within our domain as well as external users. When someone
replies to the meeting (accepts or declines), they get an error message back
from the postmaster stating that there was a reply to the meeting for a user
that is not there. The user that is getting the reply has been removed from
our domain. We have checked the rules, delegates, and permissions for the
main users Calendar and removed the deleted person. Is there somewhere else
we need to check?

thanks