Domains with DNS TXT v=spf1 ip4:78.157.144.100 include:mailgun.org -all
There is 1 domain that have DNS TXT set to v=spf1 ip4:78.157.144.100 include:mailgun.org -all.
There is 1 domain that have DNS TXT set to v=spf1 ip4:78.157.144.100 include:mailgun.org -all.