~/tools / spf-checker

SPF Checker

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

>
[ WARNING ] Soft fail (~all). Unauthorized senders flagged but not rejected. Consider -all for stronger protection.
── output ─────
v=spf1 include:_spf.google.com include:amazonses.com include:_spf.salesforce.com include:servers.mcsv.net include:spfa.cpmails.com include:spf1.economist.com ~all
DNS lookups
6 / 10
All mechanism
~all
Includes (6)
_spf.google.com, amazonses.com, _spf.salesforce.com, servers.mcsv.net, spfa.cpmails.com, spf1.economist.com
IP4 (0)
IP6 (0)
// Save economist.com → we'll run this daily and alert on changes. /signup →