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