Domains with DNS TXT v=spf1 a mx include:authsmtp.com include:mailgun.org ip4:178.79.161.79 include:_spf.createsend.com ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:authsmtp.com include:mailgun.org ip4:178.79.161.79 include:_spf.createsend.com ~all.