Domains with DNS TXT v=spf1 ip4:174.47.138.86 ip4:174.47.138.250 include:mailgun.org include:cust-spf.exacttarget.com include:sendgrid.net ~all
There is 1 domain that have DNS TXT set to v=spf1 ip4:174.47.138.86 ip4:174.47.138.250 include:mailgun.org include:cust-spf.exacttarget.com include:sendgrid.net ~all.