~/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:spf.protection.outlook.com include:8050860.spf04.hubspotemail.net include:mktomail.com include:spf_c.oraclecloud.com -all
DNS lookups
5 / 10
All mechanism
-all
Includes (5)
_spf.google.com, spf.protection.outlook.com, 8050860.spf04.hubspotemail.net, mktomail.com, spf_c.oraclecloud.com
IP4 (0)
IP6 (0)
// Save openai.com → we'll run this daily and alert on changes. /signup →