--- title: "A Guide to Choosing the Right SPF Flattening Tool for Your Organization | AutoSPF" description: "With organizations with complex email infrastructure, implementing SPF (Sender Policy Framework) is no easy feat!" image: "https://autospf.com/og/blog/guide-to-choosing-right-spf-flattening-tool-for-your-organization.png" canonical: "https://autospf.com/blog/guide-to-choosing-right-spf-flattening-tool-for-your-organization/" --- Quick Answer With organizations with complex email infrastructure, implementing SPF (Sender Policy Framework) is no easy feat! If you’ve ever encountered the “SPF PermError: Too Many DNS Lookups,” know that your email deliverability is out for a toss owing to the SPF fail. Share [ ](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fautospf.com%2Fblog%2Fguide-to-choosing-right-spf-flattening-tool-for-your-organization%2F "Share on LinkedIn") [ ](https://twitter.com/intent/tweet?text=A%20Guide%20to%20Choosing%20the%20Right%20SPF%20Flattening%20Tool%20for%20Your%20Organization&url=https%3A%2F%2Fautospf.com%2Fblog%2Fguide-to-choosing-right-spf-flattening-tool-for-your-organization%2F "Share on X/Twitter") [ ](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fautospf.com%2Fblog%2Fguide-to-choosing-right-spf-flattening-tool-for-your-organization%2F "Share on Facebook") [ ](https://reddit.com/submit?url=https%3A%2F%2Fautospf.com%2Fblog%2Fguide-to-choosing-right-spf-flattening-tool-for-your-organization%2F&title=A%20Guide%20to%20Choosing%20the%20Right%20SPF%20Flattening%20Tool%20for%20Your%20Organization "Share on Reddit") [ ](mailto:?subject=A%20Guide%20to%20Choosing%20the%20Right%20SPF%20Flattening%20Tool%20for%20Your%20Organization&body=Check out this article: https%3A%2F%2Fautospf.com%2Fblog%2Fguide-to-choosing-right-spf-flattening-tool-for-your-organization%2F "Share via Email") ![email deliverability](https://media.mailhop.org/autospf/images/2023/12/spf-record-office-365-2750.jpg) With organizations with complex email infrastructure, implementing SPF (Sender Policy Framework) is no easy feat! If you’ve ever encountered the “[SPF PermError](/spf-too-many-dns-lookups/permerror-spf-permanent-error-too-many-dns-lookups/): Too Many DNS Lookups,” know that your email deliverability is out for a toss owing to the [SPF fail](/blog/spf-softfail-or-spf-hardfail/). > “The misconception about SPF flattening is that it’s a one-time fix,” says Adam Lundrigan, CTO of DuoCircle and architect of AutoSPF’s flattening engine. “Vendor IP ranges change constantly - Google rotated their \_netblocks three times in 2025 alone. A flattened record that isn’t automatically re-resolved goes stale and silently de-authorizes legitimate senders. That’s why AutoSPF re-scans every 15 minutes.” > “The 10-lookup limit is the single most common reason enterprise SPF records silently break,” says Brad Slavin, General Manager of DuoCircle and founder of AutoSPF. “In our experience managing SPF for 2,000+ customer domains, the failure mode is always the same: a team adds a new SaaS tool, its include pushes the total past 10, and legitimate email starts failing - but nobody notices until a customer complains about missing invoices or password resets.” _Per [RFC 7208](https://datatracker.ietf.org/doc/html/rfc7208), SPF evaluation is capped at 10 DNS mechanism lookups and 2 void lookups per check - exceeding either limit produces a `PermError` that fails authentication for every message from the domain._ But why does this error message strike? _The SPF record has a DNS lookup limit of 10, and if your record reaches this limit, you will encounter an SPF PermError or SPF permanent error._ By employing the [SPF Flattening](/how-it-works/) tool, you can address this issue and compress your record to ensure it contains fewer than 10 DNS lookups. This consolidation is particularly valuable for organizations using various email services, such as cloud-based providers, [marketing automation](https://en.wikipedia.org/wiki/Marketing%5Fautomation) platforms, and third-party email gateways. Do you think your organization needs SPF Flattening but are unsure how to go about it? In this guide, we’ll help you make informed decisions that enhance your [email security](/blog/ushering-a-new-era-of-security-google-and-yahoos-take-on-email-authentication/) posture with the best SPF flattening tool for your organization’s unique needs. ## AutoSPF [AutoSPF](/) is an award-winning SPF solution trusted by over 1000 businesses daily to automatically flatten and compress all their domains within the SPF, eliminating the need for additional DNS lookups. By solving the issue of ‘Too Many DNS Lookups,’ AutoSPF ensures guaranteed email deliverability for email senders and domain owners while maintaining and updating a real-time, extensive database of all the flattened records. ### What to Expect? - Eliminate the possibility of your important emails ending up in spam. - Solve SPF challenges with near-zero configuration; simply copy, paste, and replace your [SPF record](/generative-ai-and-phishing-threats/) in less than 60 seconds. - Save time on cleaning up your legacy records before automatically flattening them. - Seamless, hassle-free maintenance of your SPF record with regular checks for vendor changes or updates every 15 minutes. - Compatibility with every email platform & tool, including Gmail, Salesforce, [Office 365](/generative-ai-and-phishing-threats/spf-record-office-365/), and other additional third-party tools. ### Pricing - Plus plan with unlimited monthly email volume for a single domain, ideal for startups & small businesses: $37/month. - Premium plan with unlimited monthly email volume for five domains, ideal for medium-sized businesses: $97/month. - Enterprise plan with unlimited monthly email volume for ten domains, ideal for [enterprise organizations](https://www.usertesting.com/glossary/e/enterprise-organization): $387/month. ## PowerDMARC PowerDMARC is a [SaaS platform](https://www.ibm.com/topics/saas) that empowers organizations to bolster their defenses with a comprehensive suite of [email authentication](/blog/ushering-a-new-era-of-security-google-and-yahoos-take-on-email-authentication/) solutions, such as DMARC, SPF, DKIM, MTA-STS, and BIMI, along with other state-of-the-art tools. [PowerDMARC’s SPF flattening tool](https://powerdmarc.com/spf-rate-limit-permerror/) is a one-click solution that instantly flattens SPF records to a single include for multiple domains and accounts while keeping them up-to-date with any changes made to authorized IPs. ![email authentication ](https://media.mailhop.org/autospf/images/2023/12/spf-record-office-365-2751.jpg) ### What to Expect? - Stay under the lookup limit at all times without having to worry about limiting your senders. - Leverage PowerSPF to update the IPs of third-party vendors with ease. - Copy and paste your old SPF record into an SPF Flattening tool to generate an optimized record in one click. - Avoid any errors, limits, or configurations in your SPF record with PowerSPF. - Ensure enhanced email deliverability. ### Pricing - Free Plan for personal, non-commercial use: $0. - Basic Plan for small business owners and startups: $8/month. - Enterprise Plan: Quote on Request. - MSP/MSSP: Quote on Request. ## EasyDMARC EasyDMARC is a cloud-based email authentication and deliverability platform that offers a wide range of tools and services to help protect businesses from grave [cybersecurity threats](https://onlinedegrees.sandiego.edu/top-cyber-security-threats/), such as phishing, email spoofing, ransomware, etc. With an expansive portfolio of comprehensive security solutions, it strives to foster a risk-free and safe growth zone. _To address the issue of “Too many DNS Lookups,” [EasySPF](https://easydmarc.com/easy-spf-too-many-dns-lookups) uses a dynamic SPF flattening algorithm that swaps the domain included in your record with IP addresses._ ### What to Expect? - Set up the SPF record on the DNS with one click. - Configure, monitor, and keep an SPF record up-to-date with a centralized interface that is straightforward and easy-to-use. - Solve 10 DNS lookup limitations. - Intuitive tool that allows easy copying and pasting of the record into your DNS provider without any syntax knowledge. - Prevent any [SPF configuration errors](/spf-validation-failed-meaning-and-troubleshooting-methods/). ### Pricing - Free Plan for one domain and 10,000 emails: $0. - Plus Plan for two domains and a minimum of 1,000,000 emails: $35.99/ per month. - Premium Plan for four domains for 1,000,000 emails: $71.99/ per month. - _Enterprise Plan for a custom quantity of domains and unlimited emails: Quote on Request._ ## MxToolbox MxToolbox, with almost two decades of industry experience, offers a range of free [Blacklist](https://www.bigcommerce.com/ecommerce-answers/what-is-a-blacklist/), DNS, and Email tools, along with paid Email Delivery solutions, to assist companies in optimizing their email delivery. MxToolbox’s [SPF Flattening Tool](https://mxtoolbox.com/c/products/features/spf-flattening?source=cms-what-is-spf-flattening) is an intuitive tool that helps you manage complex SPF records and messages and ensures that your messages evade the dreaded DNS lookup errors. ![blacklist](https://media.mailhop.org/autospf/images/2023/12/spf-flattening-3.jpg) ### What to Expect? - Offers comprehensive insights into the placement of your delivered messages in the recipient’s inbox. - The MxToolbox Complaints gathers, aggregates, and analyzes feedback information from [Inbox Providers](https://en.wikipedia.org/wiki/Mailbox%5Fprovider). - Improve email deliverability. - Analysis of the blacklist reputation of all your email-sending sources, including IP addresses of third-party senders. - Detects and reports any latency issues when sending or receiving emails. ### Pricing - Free plan with [blacklist monitoring](https://www.monspark.com/features/blacklist-monitoring) for one domain: $0/month. - Delivery Center plan for five domains: $129/month. - Delivery Center Plus plan with Advanced Email Delivery Threat Tools for five domains: $399/month. ## Red Sift OnDMARC Red Sift OnDMARC is a cloud-based DMARC, DKIM, and [SPF configuration](/blog/spf-format-explanation-basic-and-advanced/) and management platform that helps maintain a safe and reliable email infrastructure with a wide range of services. [Dynamic SPF](https://redsift.com/pulse-platform/ondmarc) is a feature in OnDMARC that helps you overcome the 10 DNS lookup limit in an effective and simple way. ### What to Expect? - Ensure maximum resilience with the Dynamic SPF infrastructure that is hosted by Google and backed by an Anycast network. - Stay within the SPF lookup limit and resolve [email deliverability issues](https://www.optimove.com/resources/learning-center/email-deliverability). - Seamlessly configure SPF for new sources on Dynamic SPF, integrated with OnDMARC. - Gain access to real lookups on the providers’ includes with their published TTL. ### Pricing - Basic plan for small organizations with a simple email setup: $35/Per month. - Essentials plan for growing organizations: $249/per month. - Professional plan for organizations upto 100 employees: $619/per month. - Enterprise plans for enterprise-scale: Quote on Request. Feeling overwhelmed by choices? When it comes to choosing a reliable and efficient SPF flattening tool for your organization, it is crucial you make an informed choice, taking all the factors that are critical to your organization into consideration. Designed to alleviate the complexities of SPF management, AutoSPF ensures a seamless and secure email authentication process. To learn more about our services, [get in touch](/book-a-demo/) with our team of experts today! ## Topics [ SPF ](/tags/spf/)[ SPF Flattening tool ](/tags/spf-flattening-tool/)[ SPF record ](/tags/spf-record/) ![Adam Lundrigan](https://media.mailhop.org/autospf/images/authors/adam-lundrigan.jpg) [ Adam Lundrigan ](/authors/adam-lundrigan/) CTO CTO of DuoCircle. Architect of AutoSPF's SPF flattening engine and DNS monitoring infrastructure. [LinkedIn Profile →](https://www.linkedin.com/in/adamlundrigan/) ## Ready to get started? Try AutoSPF free — no credit card required. [ Book a Demo ](/book-a-demo/) ## Related Articles [ Intermediate 3m 3 points to consider before setting your SPF record to -all (HardFail) May 22, 2025 ](/blog/3-points-to-consider-before-setting-your-spf-record-hardfail/)[ Intermediate 6m 6 Best practices for maintaining an SPF record Jun 5, 2025 ](/blog/6-best-practices-for-maintaining-an-spf-record/)[ Intermediate 3m Adding your SPF record to your domain provider Sep 2, 2024 ](/blog/adding-your-spf-record-to-your-domain-provider/)[ Intermediate 6m Your SPF record is broken- What does it mean and how do you fix it? Jan 16, 2025 ](/blog/broken-spf-record-meaning-and-how-to-fix-it/) ```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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