Domains with DNS TXT v=spf1 a include:spf.protection.outlook.com include:relay.mailchannels.net ip4:212.238.129.172 -all
There is 1 domain that have DNS TXT set to v=spf1 a include:spf.protection.outlook.com include:relay.mailchannels.net ip4:212.238.129.172 -all.