Domains with DNS TXT v=spf1 a include:spf.protection.outlook.com include:_spf.chessweb.eu include:mailgun.org ip4:167.235.209.221 -all
There is 1 domain that have DNS TXT set to v=spf1 a include:spf.protection.outlook.com include:_spf.chessweb.eu include:mailgun.org ip4:167.235.209.221 -all.