Resources

Guides, tutorials, and tips for SPF setup and email authentication.

Common SPF Errors and How to Fix Them

Diagnose and fix SPF errors including permerror, softfail, temperror, too many lookups, multiple SPF records, and dangerous +all configurations.

How SPF Works: Technical Deep Dive

Understand the technical details of SPF authentication — DNS lookups, envelope sender verification, evaluation order, result codes, and DMARC alignment.

How to Create an SPF Record

Step-by-step guide to creating an SPF record for your domain. Learn SPF syntax, common includes for popular email services, and how to add the record to your DNS.

Can You Have Multiple SPF Records? (No — Here's Why)

You can only have one SPF record per domain. Learn what happens with multiple SPF records, how to combine services into one record, and how to stay under the 10 DNS lookup limit.

SPF, DKIM, and DMARC: Complete Setup Guide

Set up all three email authentication protocols — SPF, DKIM, and DMARC — in the right order. A practical guide to complete email authentication.

SPF Flattening: Pros and Cons

Learn what SPF flattening is, when it makes sense, the risks of replacing includes with IP addresses, and better alternatives for staying under the 10-lookup limit.

SPF 10 DNS Lookup Limit Explained

Understand the SPF 10 DNS lookup limit — what counts, what doesn't, how to count your lookups, common provider costs, and strategies to stay under the limit.

SPF Mechanisms: include, ip4, mx, a, all Explained

Complete reference for every SPF mechanism and qualifier. Learn what include, ip4, ip6, mx, a, exists, ptr, all, redirect, and exp do in your SPF record.

SPF Record Best Practices

Best practices for creating and maintaining SPF records. Learn the right policy settings, how to audit your authorized senders, and how to keep your record clean.

How to Add an SPF Record in Cloudflare

Step-by-step guide to adding SPF records with Cloudflare DNS. Learn how to create, edit, and manage SPF TXT records in the Cloudflare dashboard.

How to Add an SPF Record in cPanel

Step-by-step guide to adding and editing SPF records in cPanel. Covers the Zone Editor, common hosting configurations, and fixing auto-generated SPF records.

SPF Record Examples for Common Setups

Copy-paste SPF record examples for Google Workspace, Microsoft 365, SendGrid, Amazon SES, and multi-provider configurations with proper syntax.

How to Add an SPF Record in GoDaddy

Step-by-step guide to adding and managing SPF records in GoDaddy DNS. Covers creating, editing, and combining SPF records with GoDaddy's DNS manager.

How to Add an SPF Record in Hostinger

Step-by-step guide to adding SPF records with Hostinger DNS. Learn how to manage SPF TXT records in hPanel and configure Hostinger email authentication.

How to Add an SPF Record in IONOS

Step-by-step guide to adding and managing SPF records in IONOS (formerly 1&1). Covers creating, editing, and combining SPF records with IONOS DNS settings.

How to Add an SPF Record in Namecheap

Step-by-step guide to adding SPF records with Namecheap DNS. Learn how to create, edit, and manage SPF TXT records through the Namecheap dashboard.

How to Add an SPF Record in Network Solutions

Step-by-step guide to adding and managing SPF records in Network Solutions. Covers creating TXT records, combining SPF for multiple services, and troubleshooting DNS propagation.

SPF Record Propagation: How Long Does It Take?

Learn how long SPF record changes take to propagate, what affects DNS propagation time, and how to verify your SPF record is live.

How to Add an SPF Record in Amazon Route 53

Step-by-step guide to adding and managing SPF records in Amazon Route 53. Covers creating TXT records, AWS CLI usage, and combining SPF with Amazon SES.

How to Add an SPF Record in Squarespace

Step-by-step guide to adding SPF records with Squarespace DNS. Learn how to create SPF TXT records through the Squarespace domain settings.

SPF Records for Subdomains: Do You Need Them?

Learn when subdomains need their own SPF records, how subdomain SPF inheritance works, and how to use subdomains to solve the 10 DNS lookup limit.

SPF Record Troubleshooting Guide

Diagnose and fix SPF record problems. Solutions for SPF not found, too many lookups, permerror, softfail, and other common SPF failures.

How to Add an SPF Record in Wix

Step-by-step guide to adding SPF records with Wix DNS. Learn how to manage SPF TXT records through the Wix domain dashboard for email authentication.

What is SPF? Email Authentication Explained

Learn what SPF (Sender Policy Framework) is, why it matters for email deliverability, and how it protects your domain from spoofing and phishing attacks.