I built something similar a few months back. link -- https://dmarcverified.com https://dmarcverified.com TBH. Not very difficult to build. I am pretty much pi

I built something similar a few months back. link -- https://dmarcverified.com https://dmarcverified.com TBH. Not very difficult to build. I am pretty much piggybacking on AWS SES's ability to provide results of all the checks for a received email. What I found is, it really hard to make a someone send you legit emails for spam check. Usually people send one email with a sample subject line. What I instead see is - more spam. It essentially became a honeypot. :)