~/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 ip4:17.41.0.0/16 ip4:17.58.0.0/16 ip4:17.142.0.0/15 ip4:17.57.155.0/24 ip4:17.57.156.0/24 ip4:144.178.36.0/24 ip4:144.178.38.0/24 ip4:112.19.199.64/29 ip4:112.19.242.64/29 ip4:222.73.195.64/29 ip4:157.255.1.64/29 ip4:106.39.212.64/29 ip4:123.126.78.64/29 ip4:183.240.219.64/29 ip4:39.156.163.64/29 ip4:57.103.64.0/18 ip6:2a01:b747:3000:200::/56 ip6:2a01:b747:3001:200::/56 ip6:2a01:b747:3002:200::/56 ip6:2a01:b747:3003:200::/56 ip6:2a01:b747:3004:200::/56 ip6:2a01:b747:3005:200::/56 ip6:2a01:b747:3006:200::/56 ~all
- DNS lookups
- 0 / 10
- All mechanism
- ~all
- Includes (0)
- —
- IP4 (16)
- 17.41.0.0/16, 17.58.0.0/16, 17.142.0.0/15, 17.57.155.0/24, 17.57.156.0/24, 144.178.36.0/24, 144.178.38.0/24, 112.19.199.64/29, 112.19.242.64/29, 222.73.195.64/29, 157.255.1.64/29, 106.39.212.64/29, 123.126.78.64/29, 183.240.219.64/29, 39.156.163.64/29, 57.103.64.0/18
- IP6 (7)
- 2a01:b747:3000:200::/56, 2a01:b747:3001:200::/56, 2a01:b747:3002:200::/56, 2a01:b747:3003:200::/56, 2a01:b747:3004:200::/56, 2a01:b747:3005:200::/56, 2a01:b747:3006:200::/56