SPF Record Generator

What is an SPF Record Generator?

Generate and validate official RFC 7208 Sender Policy Framework (SPF) DNS TXT records (`v=spf1 ...`). Configure authorized mail servers, IP addresses (`ip4:`), third-party services (`include:` Google Workspace, SendGrid, Mailchimp), and enforcement mechanisms (`~all` softfail vs `-all` hardfail).

Why Use This Tool?

  • Email Deliverability: Stop emails from landing in spam folders by publishing valid SPF records.
  • Anti-Spoofing Protection: Prevent spammers from sending spoofed emails using your domain name.
  • Third-Party Authorization: Authorize services like Google Workspace, Office 365, or Mailchimp to send email on your behalf.

How to Use

  1. Select default Domain mail authorization (MX records, A records).
  2. Add third-party include domains (e.g. `_spf.google.com`) or IP addresses.
  3. Select Enforcement Qualifier (`~all` SoftFail or `-all` Fail) and copy DNS TXT record.

Real Working Example

Input:

Domain: devdeskapp.com | Allow MX: Yes | Include: _spf.google.com | Qualifier: ~all

Output Result:

DNS TXT Record:
v=spf1 mx include:_spf.google.com ~all

Important Technical Details & Standards

  • RFC 7208 Standard Compliance: Follows official IETF RFC 7208 SPF specifications.
  • 10-DNS Lookup Limit Warning: Flags records exceeding the official 10-DNS lookup limit to prevent SPF validation errors.
  • Client-Side Generator: Instant record creation in browser memory.

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Frequently Asked Questions

What is an SPF record?

An SPF (Sender Policy Framework) record is a DNS TXT record listing mail servers authorized to send email for your domain.

What is the difference between ~all (softfail) and -all (hardfail)?

`~all` (softfail) marks unauthorized emails as suspicious; `-all` (hardfail) instructs receiving servers to reject unauthorized emails completely.

What is the 10-DNS lookup limit in SPF?

RFC 7208 limits SPF evaluation to a maximum of 10 DNS lookups (includes, mx, a) to prevent denial-of-service attacks.

Is it free?

Yes, 100% free.

Where do I add the generated SPF record?

Add it as a TXT record in your domain's DNS management console (Cloudflare, GoDaddy, Route 53).

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