Resources

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

Guides

The Complete Guide to SPF Records

Everything you need to know about SPF records in one place. Learn what SPF is, how it works, and how to set it up for your domain and email providers.

Read guide

SPF Records by DNS Provider: Setup Guides

Step-by-step guides for adding SPF records to every major DNS provider. GoDaddy, Cloudflare, Namecheap, cPanel, and 15+ more with links to full guides.

Read guide

SPF Records by Email Provider: Complete Reference

Find the correct SPF include value for every major email provider. Google Workspace, Microsoft 365, SendGrid, Mailchimp, and 15+ more services.

Read guide

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 duplicates, how to merge services into one record, and avoid the 10 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.

Updating Your SPF Record When Switching Email Providers

Step-by-step guide to updating your SPF record when migrating email providers. Avoid deliverability gaps with a safe parallel-running approach.

How to Audit and Clean Up Your SPF Record

A systematic guide to auditing your SPF record. Find unused includes, reduce lookup count, remove dead services, and keep your record healthy.

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 Bluehost

Step-by-step guide to adding SPF records in Bluehost. Learn how to create, edit, and verify SPF TXT records using the Bluehost DNS Zone Editor.

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.

How to Add an SPF Record in DigitalOcean

Step-by-step guide to adding SPF records in DigitalOcean DNS. Learn how to create, edit, and verify SPF TXT records in the Networking panel.

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 Create an SPF Record for ActiveCampaign

Learn how to create an SPF record for ActiveCampaign. Step-by-step guide with the correct emsd1.com include for reliable email delivery.

How to Create an SPF Record for Amazon SES

Step-by-step guide to creating an SPF record for Amazon SES. Learn the correct include value, custom MAIL FROM setup, and common combinations.

How to Create an SPF Record for Brevo

Learn how to create an SPF record for Brevo (formerly Sendinblue). Step-by-step guide with the correct include, common combinations, and tips.

How to Create an SPF Record for Constant Contact

Learn how to create an SPF record for Constant Contact. Step-by-step guide with the correct include, common combinations, and verification.

How to Create an SPF Record for ConvertKit

Learn how to create an SPF record for ConvertKit (Kit). Step-by-step guide to adding the correct SPF include for newsletter and creator email.

SPF Record Setup for E-Commerce Stores

Learn how to set up SPF records for your e-commerce store. Complete examples for Shopify, WooCommerce, and BigCommerce with common email provider combos.

How to Create an SPF Record for Freshdesk

Learn how to create an SPF record for Freshdesk. Step-by-step guide to adding the correct SPF include so support emails reach your customers.

How to Create an SPF Record for HubSpot

Learn how to create an SPF record for HubSpot. Step-by-step guide to adding the correct SPF include for marketing and sales email delivery.

How to Create an SPF Record for Klaviyo

Learn how to create an SPF record for Klaviyo. Step-by-step guide with the correct include, e-commerce combinations, and verification tips.

How to Create an SPF Record for Mailchimp

Learn how to create an SPF record for Mailchimp. Step-by-step guide to adding the correct Mandrill SPF include for reliable email delivery.

How to Create an SPF Record for Mailgun

Learn how to create an SPF record for Mailgun. Step-by-step guide to adding the correct SPF include for reliable transactional email delivery.

How to Create an SPF Record for Mimecast

Learn how to create an SPF record for Mimecast. Includes the correct include value, gateway setup tips, and common combinations with email providers.

How to Create One SPF Record for Multiple Email Providers

Learn how to combine multiple email providers into a single SPF record without hitting the 10 DNS lookup limit. Step-by-step guide with real examples.

SPF Records for Parked Domains and Non-Sending Domains

Learn why every domain you own needs an SPF record -- even if it never sends email. Protect parked domains from spoofing with a null SPF record.

How to Create an SPF Record for Postmark

Learn how to create an SPF record for Postmark. Step-by-step guide with the correct spf.mtasv.net include for fast transactional email delivery.

SPF Record Patterns for SaaS Applications

Learn how to set up SPF records for SaaS applications. Subdomain strategies, common transactional email stacks, and dedicated IP considerations.

How to Create an SPF Record for Zendesk

Learn how to create an SPF record for Zendesk. Step-by-step guide with the correct include, common combinations, and verification tips.

How to Create an SPF Record for Zoho Mail

Learn how to create an SPF record for Zoho Mail. Step-by-step guide with regional includes, common combinations, and verification tips for SMB users.

How to Add an SPF Record in Gandi

Step-by-step guide to adding SPF records in Gandi. Learn how to create, edit, and verify SPF TXT records using Gandi's LiveDNS interface.

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 Hover

Step-by-step guide to adding SPF records in Hover. Learn how to create, edit, and verify SPF TXT records using Hover's clean DNS management interface.

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 Netlify

Step-by-step guide to adding SPF records in Netlify DNS. Learn when to use Netlify DNS vs your registrar and how to set up SPF TXT records.

How to Add an SPF Record in Network Solutions

Step-by-step guide to adding and managing SPF records in Network Solutions. Create TXT records, combine SPF for multiple services, and verify.

How to Add an SPF Record in OVH

Step-by-step guide to adding SPF records in OVH. Learn how to create, edit, and verify SPF TXT records in the OVH Web Cloud DNS Zone manager.

How to Add an SPF Record in Porkbun

Step-by-step guide to adding SPF records in Porkbun. Learn how to create, edit, and verify SPF TXT records in Porkbun's DNS management panel.

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 SiteGround

Step-by-step guide to adding SPF records in SiteGround. Learn how to create, edit, and verify SPF TXT records using Site Tools DNS Zone Editor.

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.