Domains with DNS TXT v=spf1 mx a include:sendgrid.net include:_spf.google.com include:h-educate.com include:relay.kinstamailservice.com -all
There is 1 domain that have DNS TXT set to v=spf1 mx a include:sendgrid.net include:_spf.google.com include:h-educate.com include:relay.kinstamailservice.com -all.