Skill
Email authentication
Related work and learning, in one place.
Email authentication with SPF, DKIM, and DMARC, including policy rollout and verification.
Projects
Self-Hosted Infrastructure & Email Deliverability
I run a Debian homelab and web/mail infrastructure serving more than a dozen domains. I corrected DKIM, SPF, DMARC, and reverse DNS after outbound mail failed authentication at Gmail and Microsoft, restoring authentication and delivery across the hosted domains.