I know this issue has been discussed numerous times, but each solution does not seem to apply to me. I am not concerned yet as I still have free space and the ability to increase the db store size, but I am trying to avoid a future problem. We're running SBS with Exchange 2003 SP2. I notice that the stm file is increasing daily by roughly 50 MB, sometimes more. We do not have any MAC clients or users using POP3. My EDB file remains steady as I have set up archiving, but the STM continues to grow. The only thing I can think of is that some people have voicemails forwarded to them from our PBX system. Could this be a potential cause?