tools / Email

SPF validator

Walk a domain's SPF record and every include, and count the 10-lookup budget.

DNS lookups 2 of 10Issues 0Source draft recordResolver Cloudflare 1.1.1.1Time 2 ms

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

Mail from any other server soft-fails SPF (~all): accepted but marked.
2 of 10 allowed DNS lookups used.
No blocking problems found.

Include tree

example.com

mx pass for the mail servers of this domain · lookup 1/10
include:_spf.google.com pass if _spf.google.com passes · lookup 2/10
- _spf.google.com · 2 ms
  - ip4:74.125.0.0/16 pass for 74.125.0.0/16
  - ip4:209.85.128.0/17 pass for 209.85.128.0/17
  - ip6:2001:4860:4864::/56 pass for 2001:4860:4864::/56
  - ip6:2404:6800:4864::/56 pass for 2404:6800:4864::/56
  - ip6:2607:f8b0:4864::/56 pass for 2607:f8b0:4864::/56
  - ip6:2800:3f0:4864::/56 pass for 2800:3f0:4864::/56
  - ip6:2a00:1450:4864::/56 pass for 2a00:1450:4864::/56
  - ip6:2c0f:fb50:4864::/56 pass for 2c0f:fb50:4864::/56
  - ~all everything else: softfail
~all everything else: softfail

JSON: /spf-validator/api?domain=example.com&record=v%3Dspf1+mx+include%3A_spf.google.com+%7Eall