Sender Policy Framework, or SPF, is an email authentication technique that helps protect senders and recipients from spam, phishing and spoofing. No control panel to learn. DMARC . You could incorporate all of appriver. Select Include and enter the domain or IP address you want to include in the record. I have an SPF record that has too many DNS lookups. After registering for a free account, add any domains whose SPF you want to flatten / manage. Change sources order. The more 3rd-party email sources you add to your domain, such as Marketing Automation, CRMs, Customer Support, and Order Fulfillment, you quickly max. It is very common for organizations, when constructing or modifying their SPF record, to run up against the 10 DNS lookup limit. You can fix Permerror by deploying PowerSPF, an SPF Flattenin. up to _spfcf12. The current SPF record configuration needs to be. include:, a:, mx :, exists: Only “safe. In general, an SPF record is defined using a type of TXT record (not to be confused with the legacy SPF file type record). com ~all. The tool will perform the SPF lookup to test the SPF record and validate the SPF record on the following checks. March 7, 2022. The following SPF terms cause a DNS lookup: include; a; mx; ptr; exists; redirect; Each time these terms are found within an SPF record and within the SPF records of any nested includes and redirects, it counts towards the 10-lookup limit. Nowadays, more and more services are necessary to run online operations on a day-to-day basis: marketing, sales, customer. For Routing policy, choose Simple routing. As an integral part of email cybersecurity, SPF enables the receiving mail server to check whether incoming email comes from a domain authorized by that domain’s administrators. These include your own servers, your corporate Inbox Provider, 3rd party marketing tools, CRMs, etc. 4 states that evaluation of an SPF policy may not exceed 10 terms that require DNS lookups. SPF record flattening. Flattening. Mechanism like ip4 and ip6 are added verbatim, as these don't consume any DNS lookups. Inspect any domain's SPF record and learn how to fix it. SPF Pass Rates for Verified Sources. 3, a single text DNS record (either TXT or SPF RR types) can be composed of more than one string. 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. outlook. com. Our tools are designed to easily expose the issues threatening your email delivery. Start implementing subdomains for services. We will explain how automatic/dynamic SPF record flattening can solve this problem below. The “SPF record flattening” procedure is as follows: Get the IP addresses for each of the DNS-querying mechanisms/modifiers used in the record by querying the DNS. As per RFC 7489. If there is no match, the email does not pass the SPF test. We are proud to introduce our SPF Flattening Tool 👌. This allows SPF authentication to avoid looking up DNS records altogether since your email server simply provides the actual IP address from the start. If you use multiple email service providers, then flattening the SPF record every time is even harder and error-prone. This isn’t a line item to us. Add SPF record Office 365. 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. For anyone that has faced issues with SPF records, e. In essense an authorization list of who can send in your behalf) Unless you have a very complex SPF record, you should only need 1 SPF Record. SPF Record. Call Our agents are available to assist by telephone +1-855-700-1386; System Status Click to check the system status. ; 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. com include:_sampledomain3. We check for common errors such as using more than the 10 allowed DNS lookups. Inspect any domain's SPF record and learn how to fix it. 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). com is as follows: v=spf1 include:_spf. The 10 SPF lookup cap introduced by SPF is one of the SPF flattening restrictions. Tools. If you are looking for an SPF flattening tool you already know what SPF flattening is. Through "flattening" an SPF record, one can reduce the number of DNS-querying mechanisms/modifiers so that it's smaller than 10. • Heavy-duty steel handle. 0 license Activity. Use this free SPF wizard to generate the SPF records for your domains. Demystifying SPF Macros. 479 John Street, Victoria, BC V8T 5H1 Canada. It is very common for organizations, when constructing or modifying their SPF record, to run up against the 10 DNS lookup limit. This project implements Sender Policy Framework (SPF) record flattening for CloudFlare managed DNS zones. SPF Record Check. The idea of a dynamic SPF record can be several things, such as dynamically flattening a record, then publishing the result based on a data source. The usual issue is that SPF gets set up with softfail, and there's never a follow-up to set it to hardfail. There are fewer SPF lookups as a result. net ~all . org is used for testing now. outlook. Looking at the Audit Log area these records were created on April 17th and 18th by a. Script to update DNS records in Akamai FastDNS, using DNS—Zone Record Management API ). This includes creating and updating these records. This tool can help you generate a SPF Record or modify your current SPF Record as well as to check the modified record has. Most providers give you their SPF records, but none of. Enter the domain for which you want to create an SPF record and use the wizard to define which IP addresses are authorized by the SPF record to send e-mails. SPF is designed to help prevent spoofing, but there are spoofing techniques that SPF can't protect against. A void lookup occurs when a DNS lookup returns a null response while performing SPF authentication checks. This includes creating and updating these records. For example, if you take google. com include:spf. Grav is an easy to use, yet powerful, open source flat-file CMS. 1 day ago · Samsung Galaxy Tab S9 (11-inch, 256 GB) Tablet + $100 Best Buy Gift Card Bundle — Upgrade Pick. Checks the existence of your published SPF record. Got a bad DNS record? We can help. I’m leaning toward option #6 and have been searching around. This isn’t a case where spam emails are being sent from your own domain. com include:spf1. It can be. Select DNS to view your DNS records. For anyone that has faced issues with SPF records, e. Improve your. It makes the distinction between a DMARC domain and an SPF domain which delivers the correct SPF entries at the right place in your DNS. This tool - spflat - solved many problems and has some excellent features and characteristics. SPF認証の失敗は、以下のような原因で起こります。. Set the type to TXT and enter your SPF record in the right column (substitute your server’s IP address. To inspect your domain SPF, enter your domain name below and press the inspect button. SPF email records help maintain a list of verified senders for your domain that can be publicly looked up and retrieved by receiving. substituting SPF include clauses in the record with direct IP addresses in order to not exceed the allowed DNS lookup requests for the record. There are some obvious things we can do to reduce the number of lookups; e. SPF failures are 100% reliant on the sending mail domain. We define our spf records once (with good comments), and select which records we want flattened out (it can be tricky to fit everything so that it fits in one record and is all under 10 records. An SPF record starts with v=, telling the readers and the DNS which version of the SPF is being used. AutoSPF automatically maintains updated SPF records for businesses. eu. In our case we used the SPF survey site listed below which helps to flatten your records by using IP address ranges. exmple. Mistake 1: Multiple SPF records. SPF Wizard. SPF Record Check. It is used to reduce the number of DNS lookups required to check an SPF record. Free SPF flattening? This tool can flatten SPF records for free for you. The SPF flattening technique is useful when the DNS lookup limit is approached due to an increased number of SPF mechanisms. You may also check each MX record (IP Address. TXT records were initially created for the purpose of including important notices. . It reduces the number of DNS lookups. 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. In our case we used the SPF survey site listed below which helps to flatten your records by using IP address ranges. Publish the DNS record in your DNS management console and save changes. We currently have 12, and so would like to reduce it to the recommended maximum of 10. Additional Resource: [Blog] I’ve Got 99 Problems But SPF Ain’t One SPF flattening tool manages SPF delegation. SPF Flattening. Then those records contain IP values that used to be part of the main SPF record. Therefore, you should use a flattened SPF record as a workaround. Are you confident your email is getting through? MxToolbox is YOUR expert on email deliverability. What does the Folderly testing tool cover with regards to SPF? Take more attention While roughly 306. Manually flattening your SPF record is both error-prone and tedious, and it's recommended to use a tool to automate this process. The receiving server will issue up to 10 DNS lookups to. ) Cloudflare - Free for the time being,. The . This is a highly critical limitation to prevent Denial of Service (DoS) attacks. You won't know if they make a change until you possibly start having bounces. Some basic SPF things to know: (SPF stands for Sender Policy Framework. ; Provide these entries as a chain of spf include. 1. It is very common for organizations, when constructing or modifying their SPF record, to run up against the 10 DNS lookup limit. $0 / year Up to 10,000 DMARC compliant emails 1 domain 10 days data history. Concluding the Experiment: SPF Flattening. SPF flattening is awesome - unfortunately lots of companies are trying to charge huge amounts for managed SPF includes. Each Manual flattening basically means evaluating your desired SPF record converting all the hostnames into IP addresses along the way. (Truncated at 100k IPs reported per-source. Choose the “Convert entire pages” option. SPF flattening. 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). This includes any lookups triggered by the "include" mechanism or the "redirect" modifier. It provides a simple, intuitive system to help manage your complex SPF configurations. 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. The Real Housewives of Atlanta The Bachelor Sister Wives 90 Day Fiance Wife Swap The Amazing Race Australia Married at First Sight The Real Housewives of Dallas My 600-lb Life Last Week Tonight. 0 runtime; PowerDNS server with a configured API key; AutoSPF account; Usage. This set of tools are core to DMARC and Email Delivery. Because it doesn’t necessarily mean ‘everything’, but. The reject DMARC policy can be reached safely, wisely, and quickly thanks to the SPF delegation. According to Section 10. Free DMARC Tools. The more 3rd-party email sources you add to your domain, such as Marketing Automation, CRMs, Customer Support, and Order Fulfillment, you quickly max. Only “safe” mechanisms you have in SPF that doesn’t count for “DNS lookups”, would be ip4: and ip6:. Include mechanism in the SPF record specifies another domain or IP address that is authorized to send emails on their behalf. One of the limitations that SPF introduced is the 10 DNS lookup limit. Welcome to MxToolbox’s SPF record generator. Drag & drop your file into our PDF to JPG tool. 22. DynamicSPF carries out dynamic flattening and auto-updates the netblocks to make sure your authorized IPs are always up-to-date. This site uses a caching DNS resolver, so for tests that use live DNS, results will be cached for the Time. Outbox Protection. 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. 1. Gmail: 4/10 records; Salesforce: 8/10 records; Office 365: 2/10 records; Additional third-party tools and platforms add even more records. mimecast. SPF Record Check. Search for jobs related to Spf flattening tool or hire on the world's largest freelancing marketplace with 22m+ jobs. NET 5. com as an example. 2. The SPF record exceeds the 10 DNS query limit, which results in deteriorated email deliverability. During the lookup process, the SPF record is retrieved from the sender’s domain’s DNS. Helps in always maintain the 10 DNS lookup limit. 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 found with the record that could impact email delivery. Previous. With Dynamic SPF Flattening, organizations are likely to create a centralized SPF record that includes. Click the pencil icon next the record you want to edit. autospf. This helps you to block fraudulent activity and also reduce. AutoSPF always returns a flattened SPF records to public DNS queries. The 10 DNS lookup limit is a restriction imposed by many DNS resolvers, which limits the number of DNS queries that. Provide these entries as a chain of spf include entries. You can max out the 10 lookups pretty quickly. 3. It provides a simple, intuitive system to help manage your complex SPF configurations. _netblocks. Dmarcian indicates that their "SPF Surveyor" was the first tool to help address this problem by reading your existing SPF record, and providing a new, smaller, "flattened" SPF record in response, to reduce the number of DNS lookups needed to fully process the record, to get around the "10 DNS lookup" limit inherent to the SPF specification. Bonita Fierce Candles. 4. The project is opensource; It will query your list of approved sendors and flatten these into a list of appropriately formatted and sized spf records composed of ip4 and ip6 spf entries. The increasingly widespread use of SaaS email service providers such as Exchange Online, G-Suite, Amazon SES, SendGrid and others is a challenge for email administrators. The “redirect” modifier adds to the number of DNS Lookups. Since SPF flattening is a time-consuming manual process, it’s ripe for automation. com include:spf. Forwarding – Many people use inbox forwarding or mailing lists to manage email distribution or aggregate email. greg. 108. Additional information regarding this can be found here. 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. Use an automated service that flattened the record and then keeps it updated. Whether you are an email novice, professional, marketer or technician, Delivery Center will help you get your message through. 2. SPF Pass Rates for Verified Sources AutoSPF automatically flattens and compresses all domains within the SPF, eliminating the need for additional DNS lookups. These include your own servers, your corporate Inbox Provider, 3rd party marketing tools,. If you want to modify an existing SPF Record from a domain, please look for the domain in question. You can add as many domains and IPs as you want—just separate. So to avoid 'unreasonable load' on the validator, RFC7208 section 4. Alternatively, you can flatten records to remove DNS lookups. How to Flatten SPF Records. When you add a new mechanism in your record, you require a new. SPF Flattening. SPF flattening is a process of converting an SPF record into a format that can be more easily read and understood by humans. I have named the project Expurgate. As part of MxToolbox Delivery Center, we automatically detect the sources that are sending email on behalf of your domain. The lookup limit. I use Cloudflare for DNS for a domain that has a lot of different service providers who send email. Updated over a week ago. The graphical view allows people to quickly identify which servers are authorized to send on behalf of a domain. All of our paid plans come with access to our highly experienced technical support team. These tools are meant to help you deploy SPF records for your domain. Here to help you. GPL-3. org include:sendgrid. EasyDMARC is a comprehensive and easy-to-use tool that ensures organizations can manage their SPF, DKIM, and DMARC setup effectively. ( Note that in manual mode, no DNS changes are made or served, meaning the. cfflatten CloudFlare SPF Flattener. Reducing Risks of Misconfigurations. SPF Best Practices: Avoiding SPF Record Flattening. org is used for testing now. Flatten your SPF records manually (NOT RECOMMENDED) SPF flattening is the process of converting an SPF record into a format that contains fewer than 10 DNS lookups. Generate your unique SPF record, publish it on your DNS, and you’re all set!gknaddison May 12, 2023, 4:36pm 1. This limit is typically set at 10 DNS lookups, and if the email server exceeds this limit, it may reject the email as potentially fraudulent. Write the name of the domain as the Host. Lastly, ensure that the final merged SPF record starts with the “v=spf1” modifier and ends with the “all” mechanism. 1. com ~all. The DNS lookup is done directly against the domain's authoritative name server, so changes to DNS Records should show up instantly. The more services and third-parties that send on your behalf, the more complicated and bloated your record can become. Then building your SPF records completely out of IP addresses. Maintaining Consistency. com to send emails on behalf of a domain. spf-tools since version spf-tools/spf-tools@f4f51f7 do not output merely ip4 and ip6 records, but also keep original ptr and exists ones. Access your account. Get advanced DMARC and Hosted MTA-STS/TLS-RPT services, powered by AI and Threat Intelligence – no contracts no commitments. Step 9: Click on Automatic Setup and replace your existing SPF record with the automatically generated SPF record. Television. exmple. SPF Flattening. Similarly, it also notifies you when there is no valid SPF. Scaling a company involves a continual to and fro of emails, which can impede SPF deployment, especially for new domains. com include:spf. Welcome to DMARC Advisors’ SPF Check: the best tool to verify your Sender Policy Framework record. If you’re getting started with SPF, DKIM and DMARC, this is a great guide to using our free tools and improving your Office 365 configuration for better email delivery. Host: @. SPF flattening helps them manage these despite having limited resources. 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. One of the “include” values causes 2 DNS lookups and only has a few IPv4 addresses in it, so would. Signup for a Free MxToolbox account to run Free Bulk Lookups for MX, A, DNS, Geo, ASN, SPF & More. protection. SPF is a DNS-based mechanism for defining a whitelist of mail servers that can send email on your domain’s behalf. Anything else is rejected with a hard fail. net include:anotherSite. Higher compliance rates mean better email deliverability and better email inbox delivery. 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. It causes SPF compression by eliminating various SPF mechanisms and creating a single SPF record, which contains all IP addresses related to multiple domains. Under the Records section, select SPF. Readme License. Email has security standards to control which senders are allowed to send email for your domain. ( Here is a list of which providers/solutions provide SPF flattening/macros) Or alternatively, using subdomains for each sender. A domain must have an existing valid SPF record in order to be added: In this example, we add the "amazon. com include:spf1. This standard is all about e-mail security. _netblocks. google. Check Power ToolBox Now! gknaddison May 12, 2023, 4:36pm 1. 6 billion daily emails in 2024. Mimecast manages and hosts the SPF record, which prevents lookup limitations and duplicate entries. Creating additional SPF records for subdomains. Prerequisites: run npm install to install npm dependencies. by limiting the use of mechanisms that are requiring additional DNS lookups, such as e. If a flattened SPF record has more than 450 characters, the record must be split up and managed separately; SPF flattening can exceed 10 DNS lookup limitation but needs to include SPF. You will be transferring management of the SPF from. EasySPF eliminates the constant back and forth to your DNS provider. DMARC, DKIM, and SPF are three email authentication methods. ) For example, include:spf. 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. If a record contains too many DNS lookups, it may do more harm that good. You need to check echoworx's SPF record and determine where your mail is coming from, because it looks like they are the main offender when it comes to lookups, just their include alone is 5 lookups. The SPF lookup analyzes registered TXT records in real time. Then building your SPF records completely out of IP addresses instead of hostnames. Hello, I am hoping for advice please, on the best way to reduce the number of additional DNS lookups on our SPF record. MxToolbox's SPF Flattening Tool provides you with a simple, intuitive system to help manage your complex SPF configurations. I noticed today that my SPF record has been distributed so the main record contains includes like _spfcf1, _spfcf2 etc. Note: DMARC forensic reports are not supported by all mailbox providers due to privacy concerns. No charge for phishing attacks, or invalid mails sent on your behalf. It is a process of compressing an SPF record into sets of IP addresses. Los servidores receptores los rechazan. Use this tab to create an SPF record. Enter the SPF record that you have already created in the “Value” or “Target” column. Stars. Dynamic SPF allows you to have more than 10 DNS lookups without the worry to hit your lookup limit. If you use multiple email service providers, then flattening the SPF record every time is even harder and error-prone. Insight used for the above points can usually be found in your account's SPF survey tool. However, companies now utilize third-party senders, and each one takes up 3 or 4 servers. com aren't really adding any value; so we can just drop those records and update example. It will also measure the response times for the mail server. Thats a question best for StackExchange. There could be bug with multiple nested or flattened SPF records, which we are working on currently. Award winning e-mail security and monitoring software for Microsoft Exchange and IIS. We will explain how automatic/dynamic SPF record flattening can solve this problem below. DMARC Domain Checker; DMARC Inspector; DMARC Record Wizard; SPF Surveyor; DKIM Inspector; DKIM Validator; XML to Human Converter; DMARC Data Providers;. If you click on the next tab called “SPF record generator,” it will allow you to generate your SPF record. All SPF records must begin with v=SPF1 and end with the ‘all’ tag. SPF record flattening If you search online you will find numerous tools that supposedly optimise your SPF records by flattening all include, a and mx terms into a single, large. An SPF flattening tool is the recommended solution to prevent broken SPF by keeping your lookup limit in check at all times. Menu. Create an SPF record today for free, with our SPF record generator. com" domain, and use AutoSPF to "flatten" its various records. 123 a -all”Navigate to your domain section and publish the following SPF record: v=spf1 include:_netblocks. If you still want to manually flatten, here's one flattened below to about 8 lookups, with one caveat. This service was brought to you by ORF, our award-winning email security solution for Microsoft® Exchange and IIS SMTP servers. SPF record is being read from left to right, so it makes sense to put the most critical or frequently used email. With an SPF record in place, Internet Service Providers can verify that a mail server is authorized to send email for a specific domain. If you want to learn more about SPF, see our SPF knowledge base article. SPF Flattening. 5 stars Watchers. We are hiring! Login; Sign Up FreePartial Safe SPF for Non-flattenable SPF Includes. All of our paid plans come with access to our highly experienced technical support team. A DNS query of type TXT should result in 1 TXT record that starts with v=spf1. This tool can flatten SPF records for free for you. Flattening simply substitutes all domains in the SPF record for their IP addresses, eliminating the need for DNS search. For the most part, our advice for th. As you add more third-party email sources, such as CRMs, Marketing Automation, Customer Support, Order Fulfillment, and other tools to your domain, you quickly max out of the allotted SPF configuration options. Step 3: Update your DNS TXT Record for SPF at your domain provider (We will show examples with GoDaddy and Cloudflare) E. spf-tools since version spf-tools/spf-tools@f4f51f7 do not output merely ip4 and ip6 records, but also keep original ptr and exists ones. eloqua. Below you can find the steps that would help you to optimize SPF record: 1. SPF (Sender Policy Framework) is an email authentication protocol designed to detect email spoofing and prevent unauthorized senders from sending messages on behalf of a particular domain. Then they need to replace the original mechanism with the IP address. ️ Our platform. Say goodbye to permerrors, excessive DNS lookups, SPF record flattening, problematic ESP verification, and a host of other challenges. google. Are you confident your email is getting through? MxToolbox is YOUR expert on email deliverability. The best way to bypass the 10 DNS lookup limit is to flatten DNS records and provide the domain IP address directly. Sender Policy Framework (SPF) is a type of DNS record that Mail Administrators use to delegate email delivery options to 3rd parties. up to _spfcf12. g. Our solution compresses the number of DNS lookups in SPF records, which will improve the delivery rate of emails, allow for DMARC alignment and help with compliance. The SPF checker calculates the number of DNS lookups in your SPF record, and warns you if your record exceeds that limit. SPF. DKIM email authentication's goal is to prove the contents of the mail haven't been tampered with. example. Option 3: "Flatten" your SPF mechanisms. Check IP addresses: If the SPF authentication fails for a specific IP address, verify that the IP address is authorized to send emails on behalf of the domain. March 7, 2022. Ecosystem News Email Security Insights Inside dmarcian. _netblocks. We offer you a quick solution to bypass this issue with our dynamic SPF flattening tool. The Sender Policy Framework (SPF) is an email authentication protocol designed to prevent email spoofing, a common technique used in phishing attacks and email spam. Use an Automatic SPF Flattening Tool. Broken SPF records waste marketing dollars and defeat your organization’s security. Domain-based Message Authentication, Reporting & Conformance. DMARC reporting. With the possibility of your ESP's IP changing anytime, it's not worth the effort. If you don't, you probably don't need one yet. Phone: 1 778 265 0114 Mail: info@timberstonetools. Note that every SPF record also has a 255 character limit, so if you're using only IPs you'll need to break that up into a lot of SPF records probably. A sender policy framework (SPF) record is a type of DNS TXT record that lists all the servers authorized to send emails from a particular domain. Change sources order. SPF record flattening is great. Sender Policy Framework (SPF) is used to authenticate the sender of an email. Enter the SPF record that you have already created in the “Value” or “Target” column. SPF. Especially with SPF, it is easy to simply add all the ‘include. com to refer directly to the thirdparty SPF records; thus removing 2 from our count. ” Flattening is simply replacing all the domains in the SPF record with their IP addresses, which eliminates the need for DNS lookups. SPF tools. SPF record flattening (automatically) Feedback Feature Request Submitting & Feedback. DMARCLY Everything about DMARC, DKIM, SPF, email authentication, deliverability, anti-spoofing, anti-phishing, security, and tools. MxToolbox offers an SPF Flattening tool as part of our Delivery Center Plus plan. If you are looking for an SPF flattening tool you already know what SPF flattening is. 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. 4. com -all. For example:Upgrade for Live Support. This authorization is done by publishing a record in the DNS (Domain. The SPF all mechanism.