Domains with DNS TXT v=spf1 a include:sendgrid.net include:_spf.google.com include:spf.mandrillapp.com ~all
There are 4 domains that have DNS TXT set to v=spf1 a include:sendgrid.net include:_spf.google.com include:spf.mandrillapp.com ~all. The top 4 records ordered by domain rank are listed below.