Domains with DNS TXT v=spf1 +a +mx ip4:192.99.62.51 include:spf.smtp2go.com include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 +a +mx ip4:192.99.62.51 include:spf.smtp2go.com include:spf.protection.outlook.com -all.