I was wondering if anyone else was experiencing what appears to be a display issue. When I use System Manager to browse Mailboxes, the "Last logged on by" has frequently been displaying the incorrect account. It seems quite random and there are frequently several accounts marked as "last logged onto" different mailboxes. None of the logins that supposedly logged into another user's mailbox has a corresponding entry (time/date)in security log. I also double checked Active Directory advanced accounts security to ensure nothing had been tampered with. I just restarted the server, but it didn't fix the issue. I'm up to date with all 2003/exchange patches/SP. We're running Exchange 2003 (member server)/ Windows 2003 Active Directory. Anyone else experiencing this behavior?

It's when they are checking free/busy time. Silly no?

Thanks JohnGann. Just tested with a simplemeeting entry and sure enough the login changed when free/busy queried the mailbox. As you say - quite silly (and reassuring)!