Domains with DNS TXT v=spf1 a mx ip4:217.67.237.216 ip4:89.20.172.68 include:_spf.voip-system.nl include:spf.protection.outlook.com -all

There is 1 domain that have DNS TXT set to v=spf1 a mx ip4:217.67.237.216 ip4:89.20.172.68 include:_spf.voip-system.nl include:spf.protection.outlook.com -all.

Top Domains with TXT set to v=spf1 a mx ip4:217.67.237.216 ip4:89.20.172.68 include:_spf.voip-system.nl include:spf.protection.outlook.com -all