How to Configure SPF, DKIM, and DMARC for Google Workspace on Hostinger DNS Google Workspace Email Authentication How to Configure SPF, DKIM, and DMARC Safely When DNS Is Managed by Hostinger A complete beginner-friendly guide to diagnosing Gmail authentication failures, understanding domain registration versus DNS hosting, adding the correct records, avoiding email disruption, and verifying that SPF, DKIM, and DMARC all pass. Contents The original problem SPF, DKIM, and DMARC explained What the Gmail results meant Where DNS changes must be made Fail-safe rollout strategy Records to create Hostinger step-by-step Google Admin DKIM setup Testing and verification Troubleshooting Common mistakes Clean setup for a new domain Quick checklist The Original Problem Email sent from a custom domain through Google Workspace was reaching some providers but failing or being rejected by Gmail. The first challenge was determining whether the message w...