Domains with DNS TXT v=spf1 ip4:212.16.185.16 include:mailgun.org include:spf.sendinblue.com include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 ip4:212.16.185.16 include:mailgun.org include:spf.sendinblue.com include:spf.protection.outlook.com -all.