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