Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:spf_core.nbo.nl include:spf.mandrillapp.com -all
There are 2 domains that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:spf_core.nbo.nl include:spf.mandrillapp.com -all. The top 2 records ordered by domain rank are listed below.