How do I create an SPF record for my domain?

Select your mail servers, IPs, and includes in the generator and it builds a valid v=spf1 TXT record you can paste into your DNS zone.

How do I use the generated record?

Copy the v=spf1 string and paste it as a TXT record at your domain root in your DNS provider panel. A domain may have exactly one SPF record, so replace any existing one.

What does the 10 DNS-lookup limit mean?

SPF allows at most 10 DNS lookups per check. The mechanisms include, a, mx, ptr, exists and redirect each cost one. This tool counts them live and warns you before you publish an invalid record.

Should I end with ~all or -all?

Start with ~all (softfail) while testing so misconfigurations do not bounce your mail. Once you are confident every legitimate sender is listed, switch to -all (hard fail) for the strongest protection.

How do I add Google Workspace or Microsoft 365?

Add their include in the includes field: _spf.google.com for Google Workspace, spf.protection.outlook.com for Microsoft 365. Each include costs DNS lookups, so prefer ip4/ip6 entries where possible.

How long until the record works?

DNS changes take effect according to the record TTL, usually within minutes to a few hours. Verify the published record with the SPF Checker afterwards.

DNS & NETWORK TOOLS · FREE ONLINE TOOL

SPF Record Generator

Build a valid SPF record without memorizing syntaxSPF records look simple until you must list every service that sends mail for you: Google Workspace, a marketing platform, a transactional mailer, the CRM. This generator assembles the record from your actual sending setup, with syntax exactly right.

✓ Free to use✓ No sign-up✓ Ready in your browser

// SPF RECORD GENERATOR · GET STARTED

Use SPF Record Generator

Build a valid SPF record without memorizing syntax

IPv4 addresses (space or comma separated)

IPv6 addresses (optional)

Hostnames for "a" mechanism (optional)

Include MX servers (mx)Include domain A record (a)

Service includes (e.g. _spf.google.com)

Ending qualifier

Generated SPF record

v=spf1 mx ~all

DNS lookups used: 1 of 10

Publish this as a TXT record at your domain root. A domain may have exactly one SPF record. Verify it afterwards with the SPF Checker.

// SPF RECORD GENERATOR · HOW IT WORKS

How to use the SPF Record Generator

Add senders

Add your IP addresses, mail servers and service includes.

Pick qualifier

Choose the ending qualifier and watch the record build live.

Publish record

Copy the TXT record and publish it in your DNS.

// SPF RECORD GENERATOR · ABOUT THIS TOOL

About the SPF Record Generator

SPF syntax is unforgiving: one typo or one include too many and your legitimate mail starts failing. This generator builds the v=spf1 string for you from plain inputs, IP addresses, hostnames, mx, a and includes, while counting DNS lookups in real time. It validates the output before you publish and explains the ending qualifier in plain language. After adding the TXT record, run the SPF Checker to confirm it resolves.

Where it helps most

Most valuable during two transitions.

Record consolidation

When services each gave you their own SPF snippet, pasting them as separate records breaks SPF; this merges them into the one valid record DNS requires.

Provider migration

Moving to a new email provider means rewriting the include list; generating it here avoids carrying stale mechanisms forward.

Avoiding hand errors

One malformed mechanism can get the whole record rejected; building it by hand in a text editor is how those mistakes happen.

Lookup-limit safety

Too many includes silently blow past the 10 DNS-lookup limit; the generator keeps the count honest.

How it builds

From senders to a single record.

Add each sender

Your mail provider's include, specific IPv4 or IPv6 addresses, and the a or mx mechanisms if your servers send directly.

One-record enforcement

The tool combines everything into a single v=spf1 TXT value, enforcing the one-record rule automatically.

Your qualifier

Finish with ~all while testing, -all when you are confident every sender is listed correctly.

SPF Record Generator: built for trust

Copy the output into your DNS zone, then verify it with the SPF checker. No signup needed.

// SPF RECORD GENERATOR · COMMON QUESTIONS

SPF Record Generator FAQs

How do I create an SPF record for Google Workspace and a marketing tool?

Add both includes to one record, for example v=spf1 include:_spf.google.com include:example.marketing.com ~all. This generator merges multiple senders into a single valid record automatically.

Can I have more than one SPF record on my domain?

Should I use ~all or -all at the end of my SPF record?

How many includes can an SPF record have?

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DNS Lookup: Free Online DNS Record Checker for Any Domain

Free online DNS lookup tool. Check A, AAAA, MX, TXT, CNAME, NS and SOA records for any domain instantly. Fast, private, accurate, no sign-up required.

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