Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:_spf.yourfilter.nl include:spf.mandrillapp.com mx a -all

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

Top Domains with TXT set to v=spf1 include:spf.protection.outlook.com include:_spf.yourfilter.nl include:spf.mandrillapp.com mx a -all