Domains with DNS TXT v=spf1 +a +mx +ip4:192.254.250.175 +a:nfr0.com +include:mailgun.org ~all

There are 23 domains that have DNS TXT set to v=spf1 +a +mx +ip4:192.254.250.175 +a:nfr0.com +include:mailgun.org ~all. The top 23 records ordered by domain rank are listed below.