~/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 a ip4:212.149.50.150 ip4:212.149.48.100 include:spf.protection.outlook.com -all
DNS lookups
2 / 10
All mechanism
-all
Includes (1)
spf.protection.outlook.com
IP4 (2)
212.149.50.150, 212.149.48.100
IP6 (0)
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// Save commerzbank.de → we'll run this daily and alert on changes. /signup →