I SETUP THE MAINTENANCE INTERVAL FOR MAILBOX STORE TO RUN EVERY MIDNIGHT AND IT IS NOT BACKING UP ANYTHING. How I can get in work properly Thanks Arturo

please provide more relevant information about you issue are you reffering to online maintainence interval.. ? what do mean when you say "it is not backing up anything" ... online maintainence does not backup anythingDhruv

Hi Arturo, Here is a reference for you. How to defragment Exchange database: http://support.microsoft.com/kb/328804/en-us If the article below cannot help you well, please provide more information and we could have a further discussion. Best regards, Serena Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.