Domains with DNS TXT v=spf1 include:_spf.duocast.net include:_spf.google.com +a +mx ~all
There are 280 domains that have DNS TXT set to v=spf1 include:_spf.duocast.net include:_spf.google.com +a +mx ~all. The top 50 records ordered by domain rank are listed below.