MD Exch Svr 5.5 out of disk space

I have Exchange Server 5.5 running on an Intel Redwood MOBO, 2 300Mhz processors, and a SCSI Raid with 69 GB of disk space. Nothing else is on the machine. The available disk space is 9MB. Even after I make the users clean up their mailboxes I still need to execute eseutil to recover my disk space. But, to run eseutil you need at least 25% of the database size to run the utility. Obviously I don’t have that much space available. Can anyone point me in the correct direction to resolve this, we currently have no email. BTW: email doesn’t work because the MTA, Message Transfer Agent, Can’t start.

Thanks to anyone who will offer some avice