This is a cool site to visualise your SPF, DKIM, DMARC setup interactively.
https://www.learndmarc.com/
+1. I used this to set up DMARC and ended up signing up for their service. Only like ~$12/year and works.
alt Hacker News
+1. I used this to set up DMARC and ended up signing up for their service. Only like ~$12/year and works.