Since the message logs seem to be eating up my hard drive a little more each day, at what point can I delete the ones accumulating in the MDBDATA folder Thanks Dale

drboz, If you are refering to the logs begining in the following swquence E0*.log ? If so they are the transaction log files, and can be properly cleared with a full online backup of the exchange storage groups. There are some alternate methods listed in the following msft KB http://support.microsoft.com/kb/240145