~/tools / spf-checker

SPF Checker

Check SPF record. Counts DNS lookups against the 10-lookup limit, flags `+all` security holes, and identifies common mistakes.

>
[ OK ] Strict SPF (-all). Unauthorized senders are rejected.
── output ─────
v=spf1 include:_spf.google.com include:amazonses.com include:_spf.mailgun.monzo.com -all
DNS lookups
3 / 10
All mechanism
-all
Includes (3)
_spf.google.com, amazonses.com, _spf.mailgun.monzo.com
IP4 (0)
IP6 (0)
// Save monzo.com → we'll run this daily and alert on changes. /signup →