Email Deliverability Blog

Practical guides on staying out of the spam folder: blacklists, SPF/DKIM/DMARC, and sender reputation. Written when we have something worth publishing — not on a schedule.

Why Do My Emails Go to Spam? A DNS-First Checklist for SPF, DKIM, and DMARC

August 4, 2026 · Authentication

Most "our email goes to spam" problems are not content problems. They are DNS problems. Here is the order to check SPF, DKIM, and DMARC in, and what a correct record actually looks like.