Domains with DNS TXT v=spf1 ip4:66.147.239.60 +a +mx +ip4:184.173.106.52 include:sendgrid.net ~all

There are 37 domains that have DNS TXT set to v=spf1 ip4:66.147.239.60 +a +mx +ip4:184.173.106.52 include:sendgrid.net ~all. The top 37 records ordered by domain rank are listed below.