Domains with DNS TXT v=spf1 ip4:194.135.81.137 include:_spf.google.com include:mailgun.org -all
There are 3 domains that have DNS TXT set to v=spf1 ip4:194.135.81.137 include:_spf.google.com include:mailgun.org -all. The top 3 records ordered by domain rank are listed below.