Domains with DNS TXT v=spf1 include:_spf.google.com include:mailgun.org include:volusion.email a:smtp5.volusion.com ~all

There are 20 domains that have DNS TXT set to v=spf1 include:_spf.google.com include:mailgun.org include:volusion.email a:smtp5.volusion.com ~all. The top 20 records ordered by domain rank are listed below.