~/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 ip4:45.58.64.0/20 ip4:185.45.8.0/22 ip4:162.125.0.0/16 ip4:199.47.216.0/22 ip4:108.160.160.0/20 ip4:205.189.0.0/24 ip4:160.34.15.16/28 ip4:52.5.134.202/32 ip4:205.220.162.87/32 ip4:205.220.174.83/32 ip4:167.89.98.146/32 ip4:167.89.89.46/32 ip4:167.89.96.134/32 ip4:159.183.109.97/32 ip4:149.72.220.85/32 ip4:159.183.15.144/32 ip4:159.183.2.51/32 ip4:159.183.2.58/32 ip6:2620:c6:8000::/48 include:amazonses.com include:_spf.google.com include:mail.zendesk.com include:mktomail.com include:rp.oracleemaildelivery.com exists:%{i}._spf.mta.salesforce.com ~all
- DNS lookups
- 6 / 10
- All mechanism
- ~all
- Includes (5)
- amazonses.com, _spf.google.com, mail.zendesk.com, mktomail.com, rp.oracleemaildelivery.com
- IP4 (18)
- 45.58.64.0/20, 185.45.8.0/22, 162.125.0.0/16, 199.47.216.0/22, 108.160.160.0/20, 205.189.0.0/24, 160.34.15.16/28, 52.5.134.202/32, 205.220.162.87/32, 205.220.174.83/32, 167.89.98.146/32, 167.89.89.46/32, 167.89.96.134/32, 159.183.109.97/32, 149.72.220.85/32, 159.183.15.144/32, 159.183.2.51/32, 159.183.2.58/32
- IP6 (1)
- 2620:c6:8000::/48