SPF Checker

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Validate your SPF record for free & improve email deliverability

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    Remember to check your DKIM configuration, too.

    A properly configured SPF record is a must-have – as is a correctly set DKIM record. Check it for free in our app.


    Why you should check your SPF record - and how to do it

    Checking the status of your SPF (Sender Policy Framework) record is non-negotiable if you want to build and keep the best possible email deliverability. It reduces the chances of your emails being marked as spam and holds off phishing attempts.

    The whole idea behind SPF records is to provide an email authentication method that helps to prevent email spoofing, where bad actors forge the sender’s email address to deceive recipients. By running an SPF check, you make sure that only authorized servers can send emails on behalf of your domain.

    It’s all about protecting the authenticity of communications sent with your name on them. SPF is part of the mix of industry measures that help you keep control of your own accounts and addresses.

    Here are some key reasons to check your SPF record:

    Boost email deliverability

    An accurate SPF record check makes your emails more likely to reach recipient inboxes instead of being filtered out as spam or rejected altogether by recipient email servers.

    Prevent account spoofing

    Your SPF record helps prevent email spoofing. It does so by defining the authorized mail servers for your domain: when receiving email servers check your SPF record, they can verify if the sending server is authorized, reducing the risk of phishing attacks.

    Protecting your domain reputation

    If spammers or phishers use your domain to send malicious emails, it can negatively impact your domain reputation. SPF helps protect your domain reputation by making sure only authorized servers can send emails on your behalf.

    Enhanced security

    Verifying and maintaining your SPF record contributes to the overall security of your email infrastructure, reducing the risk of unauthorized email sending and potential cyber threats.

    Domain authentication

    SPF is one part of a larger email authentication framework, which includes DMARC (Domain-based Message Authentication, Reporting, and Conformance) and DKIM (DomainKeys Identified Mail). These mechanisms work together to strengthen your email authentication and security.

    Compliance with good email practices

    Most email service providers and recipient servers require SPF authentication to accept incoming emails. By having a valid SPF record, you comply with industry best practices and email authentication standards.

    Troubleshooting email issues

    If you see email delivery issues, checking your SPF record can help identify misconfigurations or unauthorized mail servers so you can correct them.

    To make sure your SPF record is set up correctly, review it regularly. Check if it includes all authorized mail servers used to send emails on your behalf. And remember to update the record if you change email providers or add new authorized sending servers. Properly configured SPF records are a crucial aspect of email security and deliverability.

    Need a quick review of the differences between SPF, DKIM and DMARC and their different roles? Read our guide here.