~/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 ip4:167.89.4.18 include:_spf.google.com include:mailgun.org include:aspmx.pardot.com exists:%{i}._spf.corp.salesforce.com ~all
DNS lookups
4 / 10
All mechanism
~all
Includes (3)
_spf.google.com, mailgun.org, aspmx.pardot.com
IP4 (1)
167.89.4.18
IP6 (0)
// Save heroku.com → we'll run this daily and alert on changes. /signup →