Hi all, Need help my exchange store keeps unmounting, I have increased the 18g size to 75g in the registery and made sure I had service pack 2 installed. I also had users create personal folders on their local drives and move some of their big stuff to it. the excat error is as follows: " exchange store 'first storage group\mailbox store(server name) the logical size of this database (the logical size equals the phisical size of the .edb file and the .stm file minus the logical free space in each) is 18 gb. this database has exceeded the size limit of 18gb. this database will be dismounted immediately." Any help would be appericated.