--- title: "DNS - Articles & Guides | AutoSPF" description: "All AutoSPF articles about DNS. Expert guides on dns for email authentication and deliverability." image: "https://autospf.com/images/og-default.png" canonical: "https://autospf.com/tags/dns/" --- Tag # DNS 4 articles [ Foundational 15 min SPF Record Setup Guide: How to Configure SPF on Every Major Platform A comprehensive hub guide to setting up SPF records across 60+ hosting providers, email platforms, and DNS services. Covers Office 365, Google Workspace, GoDaddy, Cloudflare, AWS, and dozens more with step-by-step instructions for each. Apr 23, 2026 ](/blog/spf-record-setup-guide-every-platform/)[ Foundational 15 min SPF Record Syntax Explained: The Complete Guide to Mechanisms, Qualifiers, and Limits A complete technical reference for SPF record syntax covering every mechanism (include, a, mx, ip4, ip6, exists, redirect, all), qualifiers (+, -, \~, ?), the 10-DNS-lookup limit, character limits, macros, and common syntax mistakes that break authentication. Apr 23, 2026 ](/blog/spf-record-syntax-complete-guide/)[ Foundational 14 min What is DKIM? The Complete Guide to DomainKeys Identified Mail A comprehensive guide to DKIM (DomainKeys Identified Mail) covering how DKIM works, cryptographic signatures, public/private key pairs, DKIM alignment, key rotation, common failures, and how DKIM integrates with SPF and DMARC for complete email authentication. Apr 23, 2026 ](/blog/what-is-dkim-email-authentication-guide/)[ Advanced 11 min What Causes An Email To Be Rejected For Sender Policy Framework After A DNS Change? Emails are typically rejected for SPF after a DNS change because receiving servers still reference cached/propagating DNS data. Jan 27, 2026 ](/blog/what-leads-to-email-spf-rejections-after-dns-update-explained/) ## Fix your SPF record, free Give us a test drive for 30 days at no cost. Fix your broken SPF in less than 60 seconds! [Fix My SPF Record!→](/pricing/) ```json {"@context":"https://schema.org","@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com","logo":{"@type":"ImageObject","url":"https://autospf.com/images/autospf-logo.png"},"description":"Automatic SPF flattening and email authentication management. 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