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