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SPF Validator

SPF Validator

Validate Sender Policy Framework (SPF) authentication of a DNS.

Sender Policy Framework (SPF) is an email authentication standard used to prevent sender address forgery. By authenticating sender's mail server, the SPF protects senders and recipients from spams and email forgery. SPF also helps emails to be delivered to user's Inbox instead of the Spam folder.

SPF Validator

Enter the required values and run the tool to view results.

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What are SPF records?

SPF (Sender Policy Framework) records are DNS records that specify which mail servers are authorized to send email on behalf of a particular domain name. The purpose of SPF records is to prevent email spoofing, which is when someone sends an email with a fake "From" address using your domain name.

An SPF record is a type of TXT record that is added to a domain's DNS records. It specifies which IP addresses or hostnames are authorized to send email for that domain. When a receiving mail server receives an email, it checks the SPF record for the domain in the "From" address to see if the IP address of the incoming email is on the list of authorized servers. If it is not, the email may be marked as spam or rejected altogether.

SPF records are used to help reduce the amount of spam and phishing emails that use fake "From" addresses. However, they are not foolproof and should not be relied upon as the only means of protecting against email spoofing. To lookup TXT DNS records, you may use our online DNS Lookup tool.

How to use SPF Validator

Use SPF Validator when you need a fast, browser-friendly way to validate DNS and email authentication data. Enter the required value, review any validation hints, and run the tool to get a clear result that can be copied, downloaded, or used in your next workflow.

This Email Tools utility is designed for repeatable checks and everyday troubleshooting. For best results, use complete and accurate input, review the output carefully, and combine the result with related tools when you need a broader diagnosis.

When this tool is useful

Checking a value before publishing, deploying, or sharing it.
Saving time on routine email tools tasks.
Comparing results with related IPLocation.net tools for a more complete review.
Documenting a result for technical support, SEO work, security review, or development notes.

SPF Validator tips

Keep a copy of the original input when comparing results, especially for DNS, web, image, PDF, text, and code tools. If a result depends on live network data, remember that DNS records, HTTP headers, certificates, rankings, and third-party responses can change over time.

No SPF record found? Update your DNS settings to help stop fake or spoofed emails.