I think this entry was a great cover combined with the nomas and AAA. Today I had something weird happen and thought this would be the place to post it. When a user leaves the company we set their e-mail to forward to their manager and we then hide the mailbox from the GAL and then run the nomas tool to resolve the MSExchangeMasterAccountSID error. Well today I needed to update a meeting that had a terminated employee so I removed her from the meeting and set the update out. Well of course it updated meeting can to me because her e-mail is being forwarded to me. Well without me having to do anything, it removed my entry off my calendar because it saw a cancel meeting request which was for her. What a great bug! Any ideas?