SPF Flattener
Useful for mail operations, audits, and agent workflows that need to reason about SPF include expansion.
spfflattener
v1
open
live
Use This Skill
Endpoints
| Method | Path | Status | Modes |
|---|---|---|---|
| POST | /api/v1/spfflattener |
live | json |
| POST | /spf-flatten/process |
web-form-csrf-recaptcha | html, json |
Input Contract
Provide a domain name whose TXT records contain an SPF policy.
Output Contract
Returns traversal stages, raw output, final flattened SPF record, or a DNS/error message.
Errors
Invalid domain, no SPF record, DNS lookup failure, flattening process failure.
Auth and Limits
Anonymous JSON API for initial rollout. Web form submissions remain protected by reCAPTCHA.
JSON API uses the standard API throttle. Web use is protected by reCAPTCHA.
Examples
Requests
{"domain":"example.com"}Responses
{"domain":"example.com","finalSPFRecord":"v=spf1 ip4:192.0.2.0/24 ~all"}FAQ
Should every SPF record be flattened?
No. Flattening can help with lookup limits, but it also creates maintenance obligations when provider ranges change.