Domains with DNS TXT v=spf1 include:spf.mandrillapp.com include:bounce.insideplazasn.com include:sparkpostmail.com include:mailgun.org -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.mandrillapp.com include:bounce.insideplazasn.com include:sparkpostmail.com include:mailgun.org -all.