Hi,
If you're using Outlook 2007 or 2010, I can build you an Outlook Add-In that you install simply by running the installation routine I'd provide you. This will basically add extra functionality into Outlook to perform these actions automatically when an email is received.
So your Outlook client would be running, the email is received and if the content of the email includes any of the text patterns you want to match on, it can be automatically deleted (or moved to a "junk" folder).
I only ask for payment on delivery and once you're happy with the product, so no interim milestones required.
More than happy to discuss further if you have any queries, just let me know!
Best regards
Chris
PulseLab Ltd (UK)