Question : MAC Recovery _MAC Book 10.5.6

We are fairly certain the MBOX file on this machine has been maliciously deleted.  We have scanned used a product called Disk Doctor and it seems to think 10.62GB are avalable for recovery.  Though, it does not show the names of the files that constitute the 10GB.  

I am looking for guidance in what program to use for best result.  I reviewed one more program and it stated zero  of data could be recovered.  I know this is not true.

Disk Doctor is $179 and this is fine as long as its the best choice.   I just really need that MBOX file back.  

Answer : MAC Recovery _MAC Book 10.5.6

Without a doubt, your best bet is DataRescue II  :http://www.prosofteng.com/

There is a free demo which will allow you to recover one file. If you need to recover more, you have to pay.