Domains with DNS TXT v=spf1 mx a include:smtp.com include:spf.protection.outlook.com include:sparkpostmail.com include:spf.hornetsecurity.com ~all

There is 1 domain that have DNS TXT set to v=spf1 mx a include:smtp.com include:spf.protection.outlook.com include:sparkpostmail.com include:spf.hornetsecurity.com ~all.

We're currently tracking 313,475,825 DNS TXT records. Use our API to retrieve detailed information for DNS domains and records. Data is updated daily.