Domains with DNS TXT v=spf1 include:_spf.google.com include:_spf.salesforce.com include:sendgrid.net ~all

There are 16 domains that have DNS TXT set to v=spf1 include:_spf.google.com include:_spf.salesforce.com include:sendgrid.net ~all. The top 16 records ordered by domain rank are listed below.