How I foot-gunned our newsletter this week [blog]

This article details a personal experience where the author, while trying to improve email deliverability for their weekly newsletter, mistakenly configured a DMARC record with a 'p=reject' policy. This caused the newsletter, sent via AWS SES, to be rejected by most recipients because the sending server didn't match the domain. The result was a dramatic drop in open rates from 40% to 3%. The author explains the troubleshooting process, including using spam scores and Mail Tester, and provides the temporary fix of setting DMARC to 'p=none'. The article serves as a cautionary tale about email security configurations and the importance of understanding DNS records like SPF, DKIM, and DMARC.