I have created a rule for Outlook to auto delete certain emails when they
arrive and it's doing that. I tried to go one step further and create a
rule that once it has been deleted to the deleted items folder to
permanently delete it from my machine. When I try to run the rule however
it causes a security/permission window to be generated and it won't do it.

Is there something else that I need to do in order for these mails to be
instantly deleted from my machine?

Thanks

Ed