~/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 ip4:146.185.48.0/21 ip4:145.60.8.129 ip4:217.68.27.250 ip4:217.68.27.206 ip4:80.69.72.128/28 ip4:87.253.151.0/24 ip4:79.143.217.1/24 ip4:87.233.195.0/24 ip4:87.233.192.0/24 include:_spf.google.com include:et._spf.pardot.com include:spf.flowmailer.net include:amazonses.com include:spf.mailjet.com -all
DNS lookups
5 / 10
All mechanism
-all
Includes (5)
_spf.google.com, et._spf.pardot.com, spf.flowmailer.net, amazonses.com, spf.mailjet.com
IP4 (9)
146.185.48.0/21, 145.60.8.129, 217.68.27.250, 217.68.27.206, 80.69.72.128/28, 87.253.151.0/24, 79.143.217.1/24, 87.233.195.0/24, 87.233.192.0/24
IP6 (0)
// Save volkskrant.nl → we'll run this daily and alert on changes. /signup →