受信側のMTAが、お客様のDNSで公開されているSPFレコードを見つけられない. To create a TXT record to replace an SPF record: Open the Route 53 console. Signup for a Free MxToolbox account to run Free Bulk Lookups for MX, A, DNS, Geo, ASN, SPF & More. It is a feature of. The SPF flattening technique is useful when the DNS lookup limit is approached due to an increased number of SPF mechanisms. Automatic flattening all domains in the include. . Automatic/dynamic SPF record flattening. create a file with credentials . RFC studies have found that using SPF records can lead to interoperability issues. I'm going through almost exactly the same issue at my employer. This is one of the common problems causing SPF validation errors for Office 365 users. SPF Delegation Frequently Asked Questions. com ~all. Mailhardener helps you to manage these policies, whilst monitoring all email traffic that use your domain name. If an include mechanism is found, SPF record flattening will call a recursive function to flatten the child SPF record specified by the include mechanism. Click Default Policy Parameters. You can max out the 10 lookups pretty quickly. This includes creating and updating these records. The SPF all mechanism. Especially with the hard fail. We help fix a very specific technical email issue, we flatten SPF records that exceed the 10-lookup threshold. Users can reduce the DNS querying mechanisms down to 1 by flattening the SPF record. All of our paid plans come with access to our highly experienced technical support team. How To Flatten a PDF File Online for Free. This option allows you to determine which standard of SPF or SIDF verification to use. SPF flattening is usually a bad idea that gets looked into because of a lack of correct SPF record creation or maintenance. SPF Compression. After completing these steps, if you’re going to be sending out emails under the same domain name, it’s always a good idea to test your emails before. Menu. These tools are meant to help you deploy SPF records for your domain. A more effective way to avoid SPF errors is to deploy an SPF flattening tool that is automatic and hassle-free – like PowerSPF! This not only ensures that you stay within the 10 DNS lookup limit, it also keeps you updates on any changes made by your email service providers and vendors who often add or. This allows SPF authentication to avoid looking up DNS records altogether since your email server simply provides the actual IP address from the start. Semester at Sea recently hit the cap for spf text fields and needed a solution to flatten our records as well as monitor our email deliverability via dmarc. SPF Record type 99 was deprecated in April 2014 per RFC7208. The more 3rd-party email sources you add to your domain, such as Marketing Automation, CRMs, Customer Support, and Order Fulfillment, you quickly max. com" domain, and use AutoSPF to "flatten" its various records. com include:spf1. em. Flattening simply substitutes all domains in the SPF record for their IP addresses, eliminating the need for DNS search. DMARC, DKIM, and SPF are three email authentication methods. You should see that it passes with an output similar to the example below: Example SPF policy details: IP address: 13. com include:spf. This helps to keep a live audit log of what each IP address is for, who put it there, and when it can be removed. com include:spf. Yes, this is known as SPF flattening. You can use our SPF flattening tool to optimize your record automatically that never exceeds the 255 character SPF record length limitHow does SPF record flattening help overcome the 10 DNS lookup limit. zwagerman December 1, 2021, 3:34pm 1. SPF flattening isn’t a one-time deal; hence, you need an automated process; you must change your SPF. Se envían a las carpetas de spam de los destinatarios. This set of tools are core to DMARC and Email Delivery. This test will connect to a mail server via SMTP, perform a simple Open Relay Test and verify the server has a reverse DNS (PTR) record. However, some domains have SPF records requiring 10+ DNS queries, which results in SPF validation failures and deteriorated email deliverability. The issue is that a customer might be using a number of different mail service providers with each one offering an include mechanism that needs to be added in DNS in order. up to _spfcf12. Step 3: Update your DNS TXT Record for SPF at your domain provider (We will show examples with GoDaddy and Cloudflare) E. ; Email Email us with your customer support inquiry. In order to promptly modify your SPF record you can use the following SPF best practices: Try typing down your email sources in decreasing order of importance from left to right in your SPF record. Read more about how to optimize your SPF record and fix DNS lookup errors. This tool - spflat - solved many problems and has some excellent features and characteristics. Especially with SPF, it is easy to simply add all the ‘include. In the SPF/SIDF Verification section, click Yes. All. One of the limitations that SPF introduced is the 10 DNS lookup limit. This helps you to block fraudulent activity and also reduce. To learn how to implement SPF/DKIM/DMARC, check out this definitive, step-by-step guide:. Setting up a SPF record allows users to specify the email servers they send email from, making it harder for fraudsters to spoof your sender information. Create a PowerDNS record for your source SPF record that you'd like to flatten (eg. . Maybe part of the confusion starts with the name ‘all’. Use this tab to create an SPF record. If you are using multiple Third-Party services for your various email strategies, it can be easy to exceed this limitation. Click Test SPF Record. Write the name of the domain as the Host. There are potentially several reasons for low SPF Pass Rates for Verified Sources: Spoofing – A malicious actor is trying to use your domain to legitimize their spam or malware. 0. outlook. edgerc file should be placed in the project root directory and should have the following format:Here’s how the SPF include mechanism works: The domain owner publishes an SPF record. Click the pencil icon next the record you want to edit. Why Is SPF Flattening Relevant? SPF has a limit of 10 DNS Lookups; any mechanism (entry) requiring a lookup after the lookup limit will not be evaluated and will fail authentication. Sure. This allows SPF authentication to avoid looking up DNS records altogether since your email server simply provides the actual IP address from the start. You will be transferring management of the SPF from. EasySPF eliminates the constant back and forth to your DNS provider. Helps in always maintain the 10 DNS lookup limit. Sends weekly email reports of email sources. SPF Flattening. If you have over 10 DNS lookups, you’ll want to use an SPF flattening tool. Scroll to top. It means putting the IP addresses in place of all the domains in the SPF record. Require the SPF record in the DNS so that it can validate it. Phone: 1 778 265 0114 Mail: info@timberstonetools. ”. SPF Pass Rates for Verified Sources. Here is an example SPF record: v=spf1 include:_spf. SPF failures are 100% reliant on the sending mail domain. Step 9: Click on Automatic Setup and replace your existing SPF record with the automatically generated SPF record. For the most part, our advice for th. In an attempt to reduce the number of DNS lookups occurring against our DNS SPF record I have written a PowerShell script which will extract out all of the allowed IP addresses from a SPF netblock (i. We offer you a quick solution to bypass this issue with our dynamic SPF flattening tool. It provides a simple, intuitive system to help manage your complex SPF configurations. Note that if you check the newly published SPF record, it might take up to 1 hour before it appears in whatever tool you use to check it, due to DNS propagation. As for mixing a and include, this is also fine. Where are Flattened SPF records DNS hosted? SPF Record too Long at your Registrar. Managed Services. eloqua. Upgrade for Live Support. com ~all. Each time they replace a modifier, the SPF. Bonita Fierce is one of our favorite Latino-owned businesses, and NBC Select updates editor. Fully scalable from SMB to enterprise with a budget-friendly price. The guidance should be a bit clearer that setting up new, unused domains should have a hardfail from the start, and that softfail is for implementing SPF on existing domains. SPF records usually contain ‘include’ statements that refer to other domains' SPF records. DynamicSPF carries out dynamic flattening and auto-updates the netblocks to make sure your authorized IPs are always up-to-date. When a domain name is listed in an SPF record, that tells receiving mail servers. If this limit is exceeded, the implementation MUST. This project implements Sender Policy Framework (SPF) record flattening for CloudFlare managed DNS zones. 4. We were. If you are looking for an SPF flattening tool you already know what SPF flattening is. Everything I've sent today is bouncing because. 22. Change sources order. The problem is that email service providers can modify or add to their IP address without telling you about this "manual" flattening. The SPF flattening works by removing the ‘a,’ ‘mx,’ and ‘include’ mechanisms to make a simplified SPF record and reduces the amount of DNS lookups. The current DNS-based SPF. Free SPF flattening? This tool can flatten SPF records. Sender Policy Framework, ou SPF, é um protocolo de autenticação de correio electrónico amplamente aclamado que valida as suas mensagens, autenticando-as contra todos os endereços IP autorizados registados para o seu domínio no seu registo SPF. Use an automated service that flattened the record and then keeps it updated. Inspect any domain's SPF record and learn how to fix it. We have 11 DNS entries, some brought in by recursion (thanks gmail!) The ip4 and ip6 entries do not contribute, only things that cause a DNS lookup count. This service was brought to you by ORF, our award-winning email security solution for Microsoft® Exchange and IIS SMTP servers. SPF Pass Rates for Verified Sources. Search for jobs related to Spf flattening tool or hire on the world's largest freelancing marketplace with 22m+ jobs. SPF-tools "Record flattening" feature at dmarcian SPF Surveyor; License. When using PowerDMARC’s SPF Flattening tool, we’ll generate a valid SPF record for you with all of your hosts and IP addresses included in one single line of text. Sigue los pasos que se indican en este artículo si has configurado SPF, pero los mensajes enviados desde tus dominios continúan teniendo estos problemas: No superan la autenticación SPF. The SPF Surveyor is an SPF diagnostic tool that presents a graphical view of SPF records. SPF flattening offers the most effective solution to the problems caused by the SPF lookup limit. Optionally, you can specify an IP address to check if it is authorized to send e-mail on behalf of the domain. SPF record flattening (automatically) Feedback Feature Request Submitting & Feedback. If a record contains too many DNS lookups, it may do more harm that good. If you still want to manually flatten, here's one flattened below to about 8 lookups, with one caveat. The complete package. This includes creating and updating these records. Global DMARC Report Analysis Vendors. In the default policy parameters, view the Security Features section. Spoofing is the unauthorized use of email by forging a domain name or address. Under the Records section, select SPF. You need to always be aware of any changes that could be made by email service providers in their SPF, which you include in your SPF record, and update your flattened SPF record accordingly. Los servidores receptores los rechazan. 2016/11 - new records on output. If you want to modify an existing SPF Record from a domain, please look for the domain in question. Pointing SPF to Valimail will not change the contents of the SPF record on the domain you perform the pointing for, this action just means 2 simple things: 1. ; Provide these entries as a chain of spf include. NFL NBA Megan Anderson Atlanta Hawks Los Angeles Lakers Boston Celtics Arsenal F. The problem of SPF record flattening and the the solution that OnDMARC offers. The tool below could be used to check whether your domain has a SPF record. So we added support for flattening the source spf records as a transformation each time the tool runs. Insight used for the above points can usually be found in your account's SPF survey tool. v=spf1: v=spf1 is the standard way that most SPF record lines of TXT begin. MxToolbox offers an SPF Flattening tool as part of our Delivery Center Plus plan. SPF errors are widespread because simple tasks like activating new email vendors can overflow and. protection. exmple. Traverses all the email senders included in your SPF record to generate a complete. We flatten the SPF entries (so you stay under the 10/10 DNS lookups) under one include. The advantage of a fully-automated SPF Flattening service is the low-maintenance. When even SPF flattening does not provide. Just as fast as a regular SPF record will be updated. Flattening the SPF record to include less DNS lookups and substituting them for IPs (flattening) is a way to get around the limit. You could incorporate all of appriver. You’re using bots to send bulk emails to customers for business or marketing purposes. This standard is all about e-mail security. Here is an example SPF record: v=spf1 include:_spf. MxToolbox's SPF Flattening is automatic and adaptive, enabling you to specify new Verified Email Sources and to have a new SPF record almost instantaneously. Enter the domain and click “Check SPF”. Whether you are an email novice, professional, marketer or technician, Delivery Center will help you get your message through. Given below is the working of SPF record flattening: Users need to get the IP addresses for all the DNS querying mechanisms by querying the DNS. Free Trial Features Safe SPF Tools Home. More than one SPF record for the same domain. 4 billion emails were sent and received each day in 2020, the figure is expected to increase to over 361. DKIM email authentication's goal is to prove the contents of the mail haven't been tampered with. It fetches the SPF record from the DNS of the domain you want to check and subsequently parses the contents of the SPF record to understand the rules and mechanisms defined within it. Nowadays, more and more services are necessary to run online operations on a day-to-day basis: marketing, sales, customer. e. You may also check each MX record (IP Address. AutoSPF automatically flattens and compresses all domains within the SPF, eliminating the need for additional DNS lookups. r53spflat is an extension to sender-policy-flattener which is a different project maintaind by centanu. google. if your SPF lookup exceeds 10, you could look at the number of recursions. Then those records contain IP values that used to be part of the main SPF record. If a DNS query results in more than one SPF record, there will be no guarantee which one will be used. There are some obvious things we can do to reduce the number of lookups; e. Finally another option is to modify your SPF records through a method known as 'SPF Flattening', which reduces the number of SPF mechanisms. knaddison September 27, 2021, 2:37pm 1. This authorization is done by publishing a record in the DNS (Domain. Use an Automatic SPF Flattening Tool. Welcome to MxToolbox’s SPF record generator. Because it doesn’t necessarily mean ‘everything’, but. SPF permerror can be a result of your DNS lookup limit exceeding the permitted threshold of 10. It provides a simple, intuitive system to help manage your complex SPF configurations. Sender Policy Framework (SPF) has. g. SPF Flattening. org The service has DNS code to get that request - in the backend lookup example. v=spf1 +a +mx include: spf. One of the “include” values causes 2 DNS lookups and only has a few IPv4 addresses in it, so would. The more 3rd-party email sources you add to your domain, such as Marketing Automation, CRMs, Customer Support, and Order Fulfillment, you quickly max. The SPF spec allows at most 10 DNS lookups. Wait for 24 hours (or more depending on your DNS provider) to activate the protocol. 0 license How can I include another SPF record if my existing domain already has 10 lines of SPF records in the TXT record? I wanted to add these two: include:mailgun. When 10 SPF lookup limit is exceeded,. For Record name, specify a name. TTL: 1 hour. Additional information regarding this can be found here. No charge for phishing attacks, or invalid mails sent on your behalf. Checks the existence of your published SPF record. It's free to sign up and bid on jobs. The concept of SPF flattening is the opposite direction, e. An SPF record check is a diagnostic tool that looks up the SPF record for a domain, displays the record and runs tests to uncover any errors within the record that could adversely impact email delivery. PowerSPF is a one-click auto SPF Record with unlimited lookups that never fails the 10 DNS Lookup limit! An Automatic SPF flattening approach to your Sender. Also, you can reduce the number of DNS-querying mechanisms/modifiers to 1 by using a flattened SPF record. It is very common for organizations, when constructing or modifying their SPF record, to run up against the 10 DNS lookup limit. SPF/DKIM/DMARC deployment tools fall into 2 categories: generators (creators/builders) to generate records and checkers (validators/testers) to look up the DNS. SPF1 and SPF2 would look like this with all IP's. The SPF Record Check is a diagnostic tool that acts as a Sender Policy Framework (SPF) record lookup and SPF validator. No control panel to learn. 3. Use SPF Record Generator to create an SPF record. SPF flattening is a process of converting an SPF record into a format that can be more easily read and understood by humans. DMARCLY Everything about DMARC, DKIM, SPF, email authentication, deliverability, anti-spoofing, anti-phishing, security, and tools. The 10 DNS lookup limit is a restriction imposed by many DNS resolvers, which limits the number of DNS queries that. DMARC Email Delivery Tools. Help on SPF record checker. Since SPF flattening is a time-consuming manual process, it’s ripe for automation. SPFFlatten. That’s over 1 Billion inboxes you could be missing! MxToolbox Delivery Center Plus provides the best solution for setting up and monitoring your DMARC, DKIM and SPF compliance rates. Ever since Gmail anounced they’d go stict against senders that don’t have SPF set up properly, we’ve been adding all our email sending services to our SPF DNS record. include:, a:, mx:, exists:. What is SPF record splitting? When a DNS TXT exceeds 255 characters, then it must be split into multiple strings. Simple enter your SPF record, click the Check SPF Record button, then scroll down to the Flattened SPF record section below to find the flattened SPF record. When the SPF PermError: Too Many DNS Lookups issue strikes, your email deliverability can take a bad hit due to SPF fail. You can use this tool to split a DNS resource record value into 255 character parts. com ~all. 3. This test will list DNS records for a domain in priority order. SPF permerror can be a result of your DNS lookup limit exceeding the permitted threshold of 10. Rapidly Growing Startups. Generate your unique SPF record, publish it on your DNS, and you’re all set!gknaddison May 12, 2023, 4:36pm 1. DKIM. An SPF flattening tool makes it possible to combine multiple DNS lookup requests into one. DKIM: DKIM is a method to sign all outgoing messages to help prevent email spoofing. Choose Define simple record. The SPF record contains a reference to external rules, which means that the validity of the SPF record depends on at least one other domain. “DNS lookups count “12” exceeds maximum limit of 10, which will result in a “permerror” and SPF authentication failure. Our award-winning application helps organizations of all sizes reduce email security risk as efficiently and effectively as possible. Our customers see a 6-8 week average time to full DMARC enforcement (p=reject or p=quarantine). exmple. Intelligent record flattening that removes DNS lookups. This service was brought to you by ORF, our award-winning email security solution for Microsoft® Exchange and IIS SMTP servers. If you use multiple email service providers, then flattening the SPF record every time is even harder and error-prone. Each SPF record is kept to less than 512 bytes to fit into a single UDP packet (assuming no other TXT records are sharing the DNS label). com aren't really adding any value; so we can just drop those records and update example. 0 license Activity. com to refer directly to the thirdparty SPF records; thus removing 2 from our count. 6 billion daily emails in 2024. This test will lookup an SPF record for the queried domain name, display the SPF Record (if found), and run a series of diagnostic tests (SPF Validation) against the record, highlighting any errors. You're often at the mercy of third-party. PowerDMARC’s free SPF record generator allows you to: Instantly create an SPF record for your domain. ABOUT SPF RECORD CHECK. SPF specification has a limit on the number of DNS lookups (10) required to fully resolve an SPF record. This can be as simple as removing a few duplicate entries (Gmail is often included in many provider SPF records) or completely refactoring the list of. you have published the SPF record. If there is no match, the email does not pass the SPF test. Stars. 1. Everything is essentially squeezed into an include. Verified Sources should be in your SPF records, meaning they should be Authenticated. SPF flattening is the process of converting an SPF record into a format that contains fewer than 10 DNS lookups. Yes, the third party service Valimail does things programmatically like this, effectively giving each IP address a lookup in their. You could do this manually, but then you have to update your SPF records every time one of the providers changes their IPs (which happens frequently). This includes any lookups triggered by the "include" mechanism or the "redirect" modifier. This ensures that your SPF record is always less than that 10 DNS lookup limit to avoid hitting the SPF hard limit. The only way to stay under the 10 maximum is to drop something. Sender Policy Framework (SPF) is an email authentication protocol that can be used to prevent spammers and attackers from sending messages that appear to come from a trusted domain. Hello, I am hoping for advice please, on the best way to reduce the number of additional DNS lookups on our SPF record. It provides a simple, intuitive system to help manage your complex SPF configurations. For example, if you take google. This isn’t a case where spam emails are being sent from your own domain. Skip to main content. Set the type to TXT and enter your SPF record in the right column (substitute your server’s IP address. When the hashsum of your IP Addresses changes, it will send out an email (or just dump HTML if it can't find an email server) with a handy diff & BIND format for viewing what has changed, and promptly updating it. SPF Manager treats the SPF open standard as defined by the RFC. ) Cloudflare - Free for the time being,. 0/24 ip4:198. NEAR ZERO CONFIGURATION. You should add this DNS record to. com include:spf2. script to expand/flatten SPF records Resources. g. Broken SPF records waste marketing dollars and defeat your organization’s security. 108. com -all. 1. Fully scalable from SMB to enterprise with a budget-friendly price. net ~all. Flattening. Dynamic SPF Solutions. net ~all. It does not look right at all. MxToolbox offers an SPF Flattening tool as part of our Delivery Center Plus plan. Select the domain you want to manage and click the DNS Zone File tab. General Usage. SPF record flattening, as the name indicates, is a process to sort of "flatten" the hierarchy in an SPF record so that the flattened record contains fewer than 10 DNS lookups. Select Include and enter the domain or IP address you want to include in the record. An SPF flattening tool reduces the instances of errors by compressing all authorized sources into a single, comprehensive, inclusive, yet simplified record that takes care of misconfigurations. You can achieve this easily with our SPF Record Generator tool; here are the steps: Step 1: Generate a new Microsoft office 365 SPF Record. There could be bug with multiple nested or flattened SPF records, which we are working on currently. The specification lets you authorize individual mail servers by IP address or by ‘including’ SPF records that are defined on a specified domain. No charge for phishing attacks, or invalid mails sent on your behalf. Mechanism like ip4 and ip6 are added verbatim, as these don't consume any DNS lookups. ) For example, include:spf. Award winning e-mail security and monitoring software for Microsoft Exchange and IIS. The usual issue is that SPF gets set up with softfail, and there's never a follow-up to set it to hardfail. This service was brought to you by ORF, our award-winning email security solution for Microsoft® Exchange and IIS SMTP servers. _netblocks. It could also mean more complex management through the use of macros. The SPF record is a TXT record, so you need to publish it in your DNS as a TXT record as follows: Navigate to the DNS for your desired domain. Otherwise, the presence of each one of. com -all This record allows any host with an IP address specified in the SPF record of _spf. SPF Flattening. Using the SPF email protocol, an organization can publish a list of authorized mail servers in an SPF record that appears in its DNS record. Value: v=spf1 include:spf. secureserver. 4 states that evaluation of an SPF policy may not exceed 10 terms that require DNS lookups. SPF認証の失敗は、以下のような原因で起こります。. This project implements Sender Policy Framework (SPF) record flattening for CloudFlare managed DNS zones. net ~all . Set up the record once, and the further changes you make in our platform will be automatically depicted in the DNS. A domain can have no more than one SPF record. SPF record generator to help with email delivery problems. domain. DKIM and SPF can be compared to a business license or a doctor's medical degree displayed on the wall of an office — they help demonstrate. SPF Compression℠ enables tight policies that safely overcome SPF's 10 DNS lookup limit. SPF record is being read from left to right, so it makes sense to put the most critical or frequently used email. If you use multiple email service providers, then flattening the SPF record every time is even harder and error-prone. First, sign in to your domain’s management console, choose which domain you’re adding an SPF record to, and go to ‘manage DNS records. com) and transforms it into this: cfflatten CloudFlare SPF Flattener. com ~all. DNS NS Record Lookup Tool – NS Record Lookup Online; DNS PTR Record Lookup Tool – PTR Record Lookup Online; DNS Record Checker Tools – Check DNS Records Instantly! DNS Record Lookup APIs: A, CNAME, MX, NS, PTR, SOA, TXT Record Retrieval APIs; DNS TXT Record Lookup Tool – TXT Record Lookup Online; Do you need DMARC if. You will find that this SPF record length is much shorter as with PowerSPF we remove all. eu. 00. com for our example without impacting the real amazon. outlook. Prerequisites: run npm install to install npm dependencies. Overview. Access your account. com that does not exceed 255 characters. With Dynamic SPF Flattening, organizations are likely to create a centralized SPF record that includes. Several. protection. If you have any queries. DMARC . The lookup count includes sub-lookups (it's recursive. EasyDMARC is an effective Dynamic SPF Flattening. This process can be useful when trying to troubleshoot SPF issues or when needing to share SPF records with others. Route53 SPF Flattener. If you want to specify an SPF record manually, use the SPF. ABOUT EMAIL HEADERS. In our case we used the SPF survey site listed below which helps to flatten your records by using IP address ranges. We check for common errors such as using more than the 10 allowed DNS lookups. Authorize desired IP addresses. ; Google Postmaster Tools: This is a free tool provided by Google that checks the SPF record of a domain and provides a report on the status of the SPF record, along with other email deliverability metrics. I have named the project Expurgate. Choose the “Convert entire pages” option. script to expand/flatten SPF records Resources. When you add a new mechanism in your record, you require a new. Forwarded email will change the return-path. It provides a simple, intuitive system to help manage your complex SPF configurations. example. SPF Tools To create/generate an SPF record, there is the SPF record generator, or SPF record creator/builder, which takes these mechanisms and qualifiers: mx , a , ip4 , ip6 , include. Our platform performs superior automatic flattening on your SPF record, instantly reducing your lookups. DMARCian emphasized that it’s crucial to adopt a more secure email authentication method like DKIM or DMARC, which eliminates the need for SPF flattening altogether. 1 Like. SPF Macros Explained. Domain owners can configure multiple domains to make use of a single SPF record hosted on one domain using SPF redirect. Log in to your Domain Registrar. Free SPF flattening? This tool can flatten SPF records for free for you. You won't know if they make a change until you possibly start having bounces. About ORF. However, since ISP's change their IP addresses frequently, the flattened IP addresses change accordingly. Start implementing subdomains for services. Tools. This authorization is done by publishing a record in the DNS (Domain. za ; 1: include:za. Since SPF flattening is a time-consuming manual process, it’s ripe for automation. You can use free online SPF tools for various tasks including generating an SPF record and checking an existing SPF record. ; r53spflat can update the SPF TXT records in Amazon Route53; r53spflat was adapted from cfspflat - which provides the same capability for Cloudflare DNS; SPF Flattening.