What does SPF Checker do exactly?

SPF Checker verifies your domain's SPF records by performing DNS lookups and analyzing the SPF configuration. It checks whether your SPF record is properly formatted, identifies all authorized mail servers, detects potential errors, and provides recommendations to improve your email authentication security and deliverability.

How long does it take to check an SPF record?

SPF Checker provides instant results within seconds. The tool performs a quick DNS query to retrieve your SPF record and immediately displays the findings, analysis, and recommendations without any waiting time.

Why is my email being marked as spam even though I have an SPF record?

Several factors could cause this issue: your SPF record might have syntax errors, missing authorized mail servers, or too many DNS lookups (exceeding the 10-lookup limit). You may also need additional authentication methods like DKIM and DMARC. Use SPF Checker to identify configuration problems and fix them accordingly.

Can I have multiple SPF records for one domain?

No, DNS standards allow only one SPF record per domain. However, you can include multiple mail servers and domains within a single SPF record using the 'include:' mechanism. If you need to add more authorized senders, use the include directive to reference other domains' SPF records.

Is SPF Checker free to use?

Yes, SPF Checker is completely free to use with no registration required. You can check unlimited domains without any hidden fees, subscriptions, or limitations. Simply enter your domain and get instant SPF verification results.

SPF Checker

How to Use SPF Checker

When to Use SPF Checker

Technical Information

Frequently Asked Questions