Dear Support, I am using Microsoft Office 2007 outlook on Exchange 2007 on Windows Server 2008 R2. One of my users has this annoying and inconvenient problem. She has a recurring series of calendar invites which she has to update everk week. However, when she has updated and sent out the new invites, some of the attendees receive just a blank content with nothing inside or just 2-3 lines. For example, 1st week -> user A and B cannot see the content inside. 2nd week-> User A can see but not User B. 3rd week-> User B can see but not User A and the sender itself. I have done everything possible, recreate profile, recreate OST and all sorts. The problem is still not solved yet. And weirdly, it happens for maybe 3 weeks in a row. Stops for 1 week, then continues the cycle again. it's very random and inconsistent. Do let me know if you need more details. I appreciate any advice from you experts. Regards, Sadiq