We want to build a crawler that searches the web for any place one can sign up with a single email. Then crawler then signs up a special logging email account. We configure our email server to accept all emails and forwards them to our backend for processing. This way we create an archive of all emails which companies are sending as promotions to their free users. Then we will have a simple interface to let people annotate the email data (is it a promotion, is it newsletter, is it a followup etc. ) . Finally, the dev must also produce a frontend which displays the emails that have been annotated and labeled for public display.