Domains with DNS TXT v=spf1 include:_spf.mlsend.com include:spf.happyfox.com include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 include:_spf.mlsend.com include:spf.happyfox.com include:spf.protection.outlook.com -all.