As a starting point, I'd suggest FiltaQuilla and a regular expression match on the subject line. Provided your dates adhere to a consistent formatting convention you should be able to identify them and act on their values, to a limited extent. But the outcome depends on how ambitious you want to be. If you need to create folders dynamically on the fly then you'll need some ''real ''code. FiltaQuilla also lets you run javascripts as a filter action, but I'm way out of my depth here.