Our public folder database is growing out of control, but I'm not sure what is taking up all of the space. Online defragmentation runs every night but only completes a full pass about every 8 days. Online maintenance does not overlap with the backup schedule, but is not able to finish in one night due to the size of the public folder database which is currently at 203GB. I ran a powershell script today to export the totalitemsize and totaldeleteditemsize of each public folder in the database and that total came to around 64GB. The last time maintenance completed a couple days ago the 1221 event log stated that there was only 2732MB free. Where is the remaining 139GB? Any suggestions?