I have an Exchange 2000 box that is getting full of log files in the mdbdata directory. I am just running ntbackup for the data files and thought I was pointing to the IS but the log files are not being removed. I only have six mail users for the server so I know that I could always just generate a .pst for each user and then delete the log files but thought I would see what the consensus is on this strategy? Is NTbackup suitable for backing up the IS or do I NEED to purchase an Exchange aware backup program? Thanks in advance.