Exchange Rule for Outgoing Mail

I currently work with Windows SBS 2003 with Exchange 2003 SP2 – I would like to know if it is possible to set up rules in exchange that will check the subject of outgoing mails and depending on the “value/information” in the subject will move the mails to a specified folder. I know this is possible from outlook but I would like to implement these rules through out the whole organisation.

Example:

I want to move all outgoing mails with job number “1234” in the subject to a specific public folder no matter which user sent the mail