~/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 ip4:52.38.191.241 include:_spf1.stackoverflow.com ~all
- DNS lookups
- 1 / 10
- All mechanism
- ~all
- Includes (1)
- _spf1.stackoverflow.com
- IP4 (1)
- 52.38.191.241
- IP6 (0)
- —