Domains with DNS TXT v=spf1 a mx ip4:37.247.39.138 include:_spf.onlinespamfilter.nl include:spf.protection.outlook.com ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx ip4:37.247.39.138 include:_spf.onlinespamfilter.nl include:spf.protection.outlook.com ~all.