SPF Record Checker – Check SPF DNS Records Online

Check your domain’s SPF record online to see which email servers are authorized by its published email-sending policy. Our free SPF Record Checker retrieves the domain’s public DNS TXT records, displays its SPF configuration, and highlights common problems such as duplicate records, invalid mechanisms, and potentially unsafe settings.

Enter your domain name below to review its SPF record. No registration or email account access is required.

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`Check a domain's SPF record`

Look up the public SPF TXT record for a domain, inspect its main directives, and spot common configuration issues.


Domain name

Enter a domain only, without https:// or an email address. Public DNS records can be viewed by anyone.
This tool reads DNS TXT records from this website's hosting server. It does not send email, verify inbox delivery, expand every include, or calculate a sender-specific SPF result. Results may be cached for five minutes.

What Is an SPF Record?

An SPF (Sender Policy Framework) record is a DNS TXT record that identifies which mail servers are authorized to send email using a domain’s SMTP envelope identity.

When a receiving mail server gets a message, it can compare the sending server’s IP address with the domain’s SPF policy. The result helps the receiver decide how to handle the message.

SPF is particularly useful for businesses using multiple email services, such as Google Workspace, Microsoft 365, website contact forms, marketing platforms, and transactional email providers.

However, SPF alone does not verify the address that recipients see in their email applications. DKIM and DMARC provide additional authentication and domain-alignment protections.

How to Check an SPF Record

Checking a domain’s SPF configuration takes a few simple steps.

Enter the domain name you want to check, such as example.com or a .com.pk domain.
Click Check SPF Record to start the DNS lookup.
Review the published SPF TXT record, if one is found.
Examine the record’s mechanisms, end policy, direct DNS terms, and any detected warnings.
If the domain belongs to you, compare the findings with your email provider’s documented configuration.

Enter only the domain name. Do not include https://, a website path, or an email address.

The checker uses the website server’s DNS resolver to request public TXT records. It does not need your domain hosting password or email credentials.

Understanding Your SPF Check Results

The checker provides several pieces of information to help you understand your published SPF policy.

SPF TXT Records

This shows how many SPF records were detected and displays their published contents.

An SPF record normally starts with:

v=spf1

A domain should publish no more than one SPF policy record at the same DNS name. If multiple SPF records exist, SPF evaluation can produce a permanent error.

Other DNS TXT records, such as domain verification records, can coexist with SPF. They do not automatically count as additional SPF records.

SPF Mechanisms

SPF mechanisms describe how sending servers are matched against the published policy.

Mechanism	Meaning
`ip4`	Matches specified IPv4 addresses or networks
`ip6`	Matches specified IPv6 addresses or networks
`include`	Evaluates another domain’s SPF policy
`a`	Checks the address records of a specified domain
`mx`	Checks the mail exchanger hosts for a domain
`exists`	Uses a DNS address lookup to test a domain
`all`	Matches any remaining sending IP address
`redirect`	Uses another domain’s SPF policy when applicable

The checker identifies these terms and performs a basic structural review. It does not fully evaluate every referenced domain.

SPF DNS Lookup Count

SPF has an evaluation-time limit of 10 DNS-lookup-causing terms. These include include, a, mx, ptr, exists, and redirect.

Exceeding the limit during actual SPF evaluation results in a permanent error.

The checker displays the number of lookup-capable terms written directly in the retrieved record. This is not necessarily the number of lookups performed during a real email authentication check.

For example, an include mechanism may lead to another SPF record containing additional lookup terms.

Because this checker does not recursively expand those records, it cannot guarantee that a domain remains within the complete SPF evaluation limit.

SPF End Policy

An SPF record often ends with an all mechanism that specifies the result for sending IP addresses not matched by earlier mechanisms.

Policy	Meaning
`-all`	Fail: the sender is not authorized
`~all`	Softfail: the sender is probably not authorized
`?all`	Neutral: no authorization assertion
`+all`	Pass: authorizes all sending IP addresses

Using +all generally defeats the purpose of restricting authorized senders.

A strict -all policy may be appropriate when all legitimate sending services are correctly included. Applying it before identifying every authorized sender can disrupt genuine email delivery.

Common SPF Record Problems and How to Fix Them

1. No SPF Record Found

If the tool cannot find a TXT record beginning with v=spf1, the checked DNS name has no detected SPF policy.

What to do: If the domain sends email, consult your email service provider’s SPF instructions. Identify every service that sends mail for the domain and configure an appropriate TXT record.

If the domain does not send email, it may still benefit from a deliberately restrictive policy, but that configuration should reflect the domain owner’s requirements.

A DNS lookup error is different from a confirmed missing record. If the checker reports a DNS failure, retry before drawing conclusions.

2. Multiple SPF Records Detected

Publishing separate SPF records for different email providers is a common configuration mistake.

For example, a business might add one record for its primary mailbox provider and another for a marketing platform.

SPF requires a single selected SPF record for a given DNS name.

What to do: Combine the necessary authorized senders into one correctly formatted SPF policy. Use the instructions supplied by each provider and check the lookup limits before saving changes.

Do not simply delete records without identifying which services depend on them.

3. Invalid SPF Syntax

Incorrect mechanism names, malformed IP addresses, and invalid modifiers can cause SPF processing errors.

What to do: Review the reported term and compare it with the SPF specification or your provider’s documentation. Correct the DNS TXT record in the authoritative DNS management panel.

4. Too Many DNS Lookups

A policy may become complicated when several services use nested include records.

What to do: Identify unnecessary or outdated senders, review provider-recommended includes, and determine the actual recursive lookup count using a full SPF evaluation tool.

Avoid copying resolved provider IP addresses into your policy unless the provider explicitly supports that approach. Those addresses can change.

5. SPF Record Exists, but Email Still Fails Authentication

Finding an SPF record does not prove a specific email message will pass authentication.

Possible causes include an unauthorized sending IP, an incorrect envelope sender domain, a third-party delivery service, DNS errors, or domain-alignment problems.

What to do: Inspect the authentication results in a received email’s headers, identify the actual sending service, and check its SPF, DKIM, and DMARC configuration.

Example of an SPF Record

Consider this illustrative policy:

v=spf1 ip4:192.0.2.10 include:mail.example.org ~all

The parts mean:

v=spf1 identifies the record as SPF version 1.
ip4:192.0.2.10 authorizes the specified IPv4 address.
include:mail.example.org evaluates another domain’s SPF policy.
~all produces a softfail result for remaining unmatched sending IP addresses.

This is an example for understanding SPF syntax, not a record to copy into a live domain. The IP address is reserved for documentation, and the referenced mail domain is illustrative.

Your actual policy must match the services authorized to send email for your domain.

SPF vs. DKIM vs. DMARC

SPF is one part of email authentication. For more complete protection, domain administrators should understand how it works alongside DKIM and DMARC.

SPF (Sender Policy Framework) checks whether the sending server is authorized to use the relevant SMTP domain identity.

DKIM (DomainKeys Identified Mail) uses a cryptographic signature to let receiving systems verify signed message content and the signing domain.

DMARC (Domain-based Message Authentication, Reporting, and Conformance) connects SPF and DKIM authentication to the domain displayed in the message’s From header. It also allows domain owners to publish policies and receive authentication reports.

A domain can have a correctly published SPF record while still experiencing DKIM failures, DMARC alignment failures, or inbox delivery problems.

Frequently Asked Questions

Can I check the SPF record of any domain?

You can check the publicly published SPF TXT record of a domain that resolves through the checker’s DNS resolver. You do not need to own the domain or sign in to its hosting account.

Can a domain have two SPF records?

No. A DNS name must not publish multiple SPF records that are selected during SPF evaluation. If multiple records are found, combine the required authorized senders into one valid policy.

Does an SPF record guarantee that emails reach the inbox?

No. SPF is an authentication mechanism, not a deliverability guarantee. Recipient-side filtering, domain reputation, message content, DKIM, DMARC, and other factors can affect delivery.

How long do SPF record changes take to appear?

DNS updates may become visible at different times depending on caching, record TTL values, and resolver behavior. If you recently changed an SPF record, allow existing cached DNS answers to expire and check again.

Is this SPF Record Checker free?

Yes. The checker is intended for checking public SPF DNS records without an account or paid DNS API.

About This SPF Checker

The NetTools Pakistan SPF Record Checker performs a public DNS TXT lookup and a basic static analysis of the detected SPF policy.

It can display records, identify supported mechanisms, highlight certain configuration problems, and count direct lookup-capable terms.

It does not send test emails, inspect private mail accounts, recursively expand every referenced SPF policy, simulate sender-specific authentication, or guarantee that an email will pass SPF, DKIM, or DMARC checks.

DNS results may be cached for up to five minutes. Submitted domains are processed through the website’s hosting server, and ordinary hosting or access-log policies may apply.

For domain administrators, the checker is a useful starting point for diagnosing SPF configuration. Always verify changes against your email provider’s instructions before updating production DNS.

Check a domain's SPF record