Domains with DNS SPF "v=spf1 include:_spf.google.com ~all include:sendgrid.net ~all include:zcsend.net ~all include:transmail.net ~all"
There is 1 domain that have DNS SPF set to "v=spf1 include:_spf.google.com ~all include:sendgrid.net ~all include:zcsend.net ~all include:transmail.net ~all".