~/tools / spf-checker

SPF Checker

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

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[ OK ] Strict SPF (-all). Unauthorized senders are rejected.
── output ─────
v=spf1 mx ip4:87.233.130.50 ip4:87.233.130.51 ip4:87.233.74.18 ip4:87.233.206.102 ip4:87.233.206.103 ip4:89.146.27.182 ip4:212.23.130.0/28 ip4:217.115.148.192/27 ip4:5.196.102.96/28 ip4:37.58.122.100 ip4:104.40.199.180 ip4:62.204.93.131 ip4:13.69.10.134 ip4:192.113.181.33 ip4:151.106.158.193 ip4:160.8.43.116 ip4:207.244.98.227 ip4:83.149.98.72 ip4:83.149.98.73 ip4:40.115.66.46 ip4:13.94.232.90 ip4:191.238.213.99 ip4:213.227.138.96/28 ip4:83.149.67.64/27 ip4:178.162.177.128/27 ip4:192.254.121.79 ip4:85.222.130.224/28 ip4:85.222.138.224/28 ip4:85.222.150.192/28 ip4:85.222.150.208/28 ip4:85.222.150.224/28 ip4:85.222.158.192/28 ip4:85.222.158.208/28 ip4:85.222.158.224/28 ip4:161.71.6.224/28 ip4:161.71.14.224/28 include:spf.emsecure.net include:sendgrid.net ip4:217.114.96.34/32 ip4:84.241.129.64/27 ip4:84.241.136.96/27 ip4:84.241.172.160/27 ip6:2001:1690:22:a00::/56 ip4:217.114.105.25 ip4:192.113.239.50 ip4:81.17.56.1 ip4:13.88.226.191 ip4:35.156.137.161 ip4:3.126.49.211 ip4:3.125.176.117 ip4:51.13.102.144 include:spf.protection.outlook.com include:spf.flowmailer.net -all
DNS lookups
5 / 10
All mechanism
-all
Includes (4)
spf.emsecure.net, sendgrid.net, spf.protection.outlook.com, spf.flowmailer.net
IP4 (48)
87.233.130.50, 87.233.130.51, 87.233.74.18, 87.233.206.102, 87.233.206.103, 89.146.27.182, 212.23.130.0/28, 217.115.148.192/27, 5.196.102.96/28, 37.58.122.100, 104.40.199.180, 62.204.93.131, 13.69.10.134, 192.113.181.33, 151.106.158.193, 160.8.43.116, 207.244.98.227, 83.149.98.72, 83.149.98.73, 40.115.66.46, 13.94.232.90, 191.238.213.99, 213.227.138.96/28, 83.149.67.64/27, 178.162.177.128/27, 192.254.121.79, 85.222.130.224/28, 85.222.138.224/28, 85.222.150.192/28, 85.222.150.208/28, 85.222.150.224/28, 85.222.158.192/28, 85.222.158.208/28, 85.222.158.224/28, 161.71.6.224/28, 161.71.14.224/28, 217.114.96.34/32, 84.241.129.64/27, 84.241.136.96/27, 84.241.172.160/27, 217.114.105.25, 192.113.239.50, 81.17.56.1, 13.88.226.191, 35.156.137.161, 3.126.49.211, 3.125.176.117, 51.13.102.144
IP6 (1)
2001:1690:22:a00::/56
// Save hema.nl → we'll run this daily and alert on changes. /signup →