Top Free SPF Record Generators To
Simplify Email Security In 2025


Properly configuring SPF (Sender Policy Framework) is one of the most effective strategies to protect your domain from spoofing and enhance email deliverability. However, manually creating an SPF TXT record can lead to mistakes: a misplaced mechanism, an omitted include, or exceeding the 10 DNS lookup limit can disrupt authentication without any warning.

To simplify this process, free SPF record generators are available to help you navigate common sending sources and produce a valid record that you can easily copy and paste. Here are the best free options for 2025, along with advice on how to select the right tool and ensure safe publication.


Why use an SPF generator?


An effective generator helps avoid syntax errors, recommends appropriate mechanisms (such as include, a, mx, ip4/ip6), and frequently checks your results against actual DNS records. Numerous tools combine generation with lookup and inspection features, enabling you to identify nested includes that may bring you close to the 10-lookup limit specified in RFC 7208 — one of the primary reasons for SPF failures.



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The top free SPF record generators (2025)


EasyDMARC SPF Record Generator

EasyDMARC offers a generator that guides you in choosing your providers and then produces a TXT record that's ready for publication. Additionally, their SPF Lookup tool provides a visual representation of your include tree and authorized sources, making it easier to identify any superfluous lookups before going live.


MXToolbox SPF Record Generator

For email administrators, MXToolbox has been an essential resource for quite some time. Its record generator ensures compliance and is supported by comprehensive deliverability tools along with detailed guides for setting up or adjusting SPF records with well-known DNS providers. If you prefer a solution that combines record creation and diagnostic tools in a single platform, this is an excellent option.


PowerDMARC SPF Generator

PowerDMARC offers a complimentary generator designed to swiftly validate genuine sources while integrating various features into a comprehensive "toolbox" that includes DMARC, DKIM, BIMI, and MTA-STS. This all-encompassing approach ensures that your SPF remains consistent with DKIM and DMARC as your operations expand.


SPF-Record.com Wizard

For those who favor a straightforward approach, SPF-Record.com enables you to specify permitted IP addresses and hosts, generating the corresponding TXT record for you. Additionally, the site features a simple verification tool that is handy for quick assessments or uncomplicated domains.


Kitterman Tools (advanced validation)

Although Kitterman's tools are primarily recognized for their validation capabilities rather than generation, they operate using a library that adheres to RFC 7208 standards and specifically examines processing-limit challenges. This makes them excellent for auditing intricate records or verifying that the output from a generator will remain within lookup constraints. It's advisable to include this tool in your arsenal, even if you develop other solutions.



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Other honorable mentions

Folderly offers a free generator that makes it easy to create records quickly. Additionally, keep in mind that certain senders, like Postmark, may not necessitate being included in your custom SPF according to their latest recommendations. Therefore, it's important to review your provider's documentation before incorporating any additional includes.


How to choose the right generator


  • Align your sending configuration: Choose a tool that accurately lists your current providers, allowing you to select from recognized templates rather than making assumptions. Be sure to include all relevant domains. If a provider isn't mentioned, refer to their most recent SPF guidelines before adding it manually.

  • Prioritize verification and visualization: Using generators that combine creation with lookup and graphing features enables you to identify nested includes and eliminate redundancies before reaching the 10-lookup limit. This approach helps avoid unexpected "permerror" issues and enhances stability if a vendor's included records change in the future.

  • Consider the entire framework (SPF, DKIM, DMARC): SPF is most effective when it works in conjunction with DKIM and is enforced through DMARC. Tools that also create DKIM/DMARC records (and even BIMI, MTA-STS, TLS-RPT) help maintain consistency across your records and simplify the implementation process. Delve into this website for extra details.