- / SPF record checker
SPF record checker
Check SPF records for any domain to verify authorized email senders. View parsed mechanisms, validity status, and troubleshoot email deliverability issues.
What is SPF?
SPF (Sender Policy Framework) is an email authentication method that helps prevent email spoofing. It works by publishing a DNS TXT record that specifies which mail servers are authorized to send email on behalf of your domain.
When a receiving mail server gets a message claiming to come from your domain, it checks the SPF record to verify the sending server is authorized. This helps protect against phishing and improves deliverability.
Common SPF mechanisms
| Mechanism | Description |
|---|---|
| include: | Authorize another domain's SPF record |
| a | Allow the domain's A record IP |
| mx | Allow the domain's MX server IPs |
| ip4/ip6 | Allow a specific IP or range |
| -all | Hard fail: reject unauthorized senders |
| ~all | Soft fail: accept but mark suspicious |
How to use this tool
- Enter a domain name (e.g., "example.com").
- Click "Check" to query the SPF record.
- Review the raw SPF record, parsed mechanisms, and validity status.
Raw record
v=spf1 include:_spf.google.com ~allMechanisms
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