Domains with DNS TXT v=spf1 a mx include:_spf.yourfilter.nl include:spf.mandrillapp.com -all
There are 20 domains that have DNS TXT set to v=spf1 a mx include:_spf.yourfilter.nl include:spf.mandrillapp.com -all. The top 20 records ordered by domain rank are listed below.