Domains with DNS TXT v=spf1 mx a ip4:173.10.144.21 include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 mx a ip4:173.10.144.21 include:spf.protection.outlook.com -all.
There is 1 domain that have DNS TXT set to v=spf1 mx a ip4:173.10.144.21 include:spf.protection.outlook.com -all.