Domains with DNS TXT v=spf1 mx include:spf.protection.outlook.com a:outbound.mailhop.org ip4:206.210.122.149 ip4:206.210.123.18 ip4:67.211.121.146 ip4:54.235.168.232 ip4:54.83.17.28 ip4:207.134.104.189 -all
There is 1 domain that have DNS TXT set to v=spf1 mx include:spf.protection.outlook.com a:outbound.mailhop.org ip4:206.210.122.149 ip4:206.210.123.18 ip4:67.211.121.146 ip4:54.235.168.232 ip4:54.83.17.28 ip4:207.134.104.189 -all.