Domains with DNS TXT v=spf1 mx a ip4:37.128.148.169 include:_spf.hostnet.nl include:spf.protection.outlook.com include:sendgrid.net ~all
There is 1 domain that have DNS TXT set to v=spf1 mx a ip4:37.128.148.169 include:_spf.hostnet.nl include:spf.protection.outlook.com include:sendgrid.net ~all.