About a month ago my Information Store went over the 16 GB limit. I immediately archived a bunch of old data and deleted it from the information store. I then did an offline defragmentation of the IS. I removed over 5 GB of data. My IS was at 11 GB. I still noticed the Event ID 1216, but it did not have any affect on anything so I thought it was just a minor glitch. This morning my end users reported problems getting into email. I discovered that if my account, which is the original administrator account, was logged in, the information store stops. If I stay out of Outlook it is fine. This is the same thing that occurred when my IS went over the 16 GB limit last month and it is still report the event ID 1216 when it starts up. How can I force Exchange to realize the IS is not over the limit?