Download attach file automatically

Hi All,
I want to create a script or a rule that if I receive an email from a specific address (e.g. pippo@minnie.com) using Mail of MacOsX, I want to save the attachment file enclosed in that email in a specific folder of my computer (e.g. Volume:Test:).
I checked in Mail rules and in automator, but any hint I found on it...

Someone could you help me?
Thanks a lot,
Salvatore

p.s. any suggestion are appreciated, even if I must use a different application, instead of Mail of Mac...