I have a feeling that what you say you want isn't.

You should only have one computer that download the messages AND deletes
them from the server - your main computer.

Then set up the lap top to download AND leave them on the server. For more
information, open Outlook on your laptop computer, press the F1 key search
for "leave on server" (without the quotes).  Follow the instructions to
leave the message on the server. Then when you return to the main computer,
you will again see the same messages, but they will be removed from the
server.

it'll still download them before deleting because it won't check them as it
downloads from the server...  Which makes a view that hides these messages
just as useful as a rule with a script, although I don't have a sample
script for deleting aged mail.  If you do use a rule, make sure outlook
isn't set to delete messages when they are deleted from outlook or you'll
lose all mail from the server.