--- title: "How To Avoid SPF Validation Error Office 365 | DuoCircle" description: "How To Avoid SPF Validation Error Office 36An SPF validation error Office 365 appears when the email validation at the sender’s domain fails. When such an" image: "https://www.duocircle.com/images/og-default.png" canonical: "https://www.duocircle.com/content/spf-validation-failed/spf-validation-error-office-365/" --- Content # How To Avoid SPF Validation Error Office 365 How To Avoid SPF Validation Error Office 36An SPF validation error Office 365 appears when the email validation at the sender’s domain fails. When such an [ Talk to an Expert → ](/contact/) [ See what we make ](/products/) ## How To Avoid SPF Validation Error Office 36 _An SPF validation error Office 365 appears when the email validation at the sender’s domain fails_. When such an ‘**SPF validation failed**’ error situation occurs, the first step to take is an [Exchange SPF check](/content/spf-validation-failed/exchange-spf-check). [Fix Your SPF Errors Now](/email/spf-record-check) ![spf validation failed](https://media.mailhop.org/duocircle/images/2020/12/spf-record-all.png) ### SPF Check Path The path for the check is as follows _Exchange Admin Center > Protection > Spam Filter > Double Click Default > Advanced Options > Set SPF record: Hard fail: Off_ One of the prime reasons why Office 365 produces a validation error is an [invalid SPF record](/content/spf-validation-failed/invalid-spf-record). It can only be corrected by adding the **SPF record** following the rules recommended by Microsoft. SPF validation error Office 365 could appear in different forms. In some cases, it is seen as an ‘[SPF validation unavailable](/content/spf-validation-failed/spf-validation-unavailable)’ error even when an SPF record is present. _It can be solved by turning the Set SPF record: hard fail to off_. ### G Suite SPF Validation Error Sometimes, issues could arise out of [G Suite integration](https://support.google.com/a/answer/33786?hl=en). An [SPF check failed Gmail](/content/spf-validation-failed/spf-check-failed-gmail) error would ideally be solved by looking at the **SPF’s TXT record**. A single domain will only have one TXT record for SPF. However, there may be multiple servers attached to a TXT record for a domain. Enabling SPF for the domain will solve the issue. If an ‘[SPF validation failed](/content/spf-validation-failed)’ circumstance appears again, the TXT record must be revisited for the particular domain. ![invalid spf record](https://media.mailhop.org/duocircle/images/2020/12/change-spf-record.png)![spf records](https://media.mailhop.org/duocircle/images/2020/12/spf-records-in-dns.png) ### The Checklist Usually, an [SPF validation](https://www.autospf.com/) error Office 365 can be overcome by one or more of the following steps: - Updating the current [SPF TXT record](https://www.namecheap.com/support/knowledgebase/article.aspx/317/2237/how-do-i-add-txtspfdkimdmarc-records-for-my-domain/) - Updating all external emails linked to all on-premises servers - Applying an enforcement rule for both incoming and outgoing emails - Setting the syntax of the TXT records correctly ### Final words [SPF validation error](/content/spf-validation-failed/spf-validation-error) Office 365 instances are common and can be overcome by the above-mentioned simple steps. _You must ensure an error-free SPF record for every new domain that you set up to **prevent spoofing** attempts from malicious actors_. ![spf flattening](https://media.mailhop.org/duocircle/images/2020/12/verify-spf.png) ##### Join the thousands of organizations that use DuoCircle --- Find out how affordable it is for your organization today and be pleasantly surprised. [Auto SPF - Sign Up FREE](/email/spf-record-check)Interested in our Partner Program for MSPs and VARs? Visit Our [MSP Partner Program](/msp-partner-program). ## Ready to talk? Same-day response from someone technical. We tell you yes or no quickly. If yes, we get to work. [Talk to an Expert→](/contact/)[See what we make](/products/) ```json {"@context":"https://schema.org","@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.","subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}],"sameAs":["https://www.linkedin.com/company/duocircle","https://x.com/duocirclellc","https://www.facebook.com/duocirclellc","https://www.g2.com/products/phish-protection-by-duocircle/reviews","https://github.com/duocircle","https://www.crunchbase.com/organization/duocircle-llc"],"contactPoint":{"@type":"ContactPoint","contactType":"customer support","url":"https://support.duocircle.com"},"knowsAbout":["Email Security","Email Authentication","SPF","DKIM","DMARC","Phishing Protection","Spam Filtering","SMTP Relay","Email Deliverability","Email Forwarding"]} ``` ```json {"@context":"https://schema.org","@type":"WebSite","name":"DuoCircle LLC","url":"https://www.duocircle.com","description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.","publisher":{"@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. Trusted by 50,000+ organizations since 2014.","subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}]}} ``` ```json [{"@context":"https://schema.org","@type":"WebPage","name":"How To Avoid SPF Validation Error Office 365","description":"How To Avoid SPF Validation Error Office 36An SPF validation error Office 365 appears when the email validation at the sender’s domain fails. When such an ","url":"https://www.duocircle.com/content/spf-validation-failed/spf-validation-error-office-365/","speakable":{"@type":"SpeakableSpecification","cssSelector":[".page-answer",".duo-rich-text p:first-of-type"]},"dateModified":"2023-07-29T11:38:05.000Z","datePublished":"2020-12-22T21:53:08.000Z"},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"DuoCircle","item":"https://www.duocircle.com/"},{"@type":"ListItem","position":2,"name":"How To Avoid SPF Validation Error Office 365","item":"https://www.duocircle.com/content/spf-validation-failed/spf-validation-error-office-365/"}]}] ```