I'm interested in automating some reactive work I do when receiving certain emails in one of my email accounts. What I would like to have happen is:

1. On receipt of new email in the account
2. If the new email passes the "Need to React" criteria (based on body content and subject line) 3a. Scrape some content out of the email body and subject lines 3b. Populate a template form (e.g. Excel spreadsheet) with the scraped data 3c. Print the populated form and save the populated form in some folder (e.g. as a pdf)

What's the best (defined as easiest to implement by myself) approach / combination of technologies for achieving this automation?