Domains with DNS TXT v=spf1 include:secureserver.net include:_spf.btinternet.com include:bt.com include:relay.mailchannel.net -all

There is 1 domain that have DNS TXT set to v=spf1 include:secureserver.net include:_spf.btinternet.com include:bt.com include:relay.mailchannel.net -all.

We're currently tracking 465,229,029 DNS TXT records. Use our API to retrieve detailed information for DNS domains and records. Data is updated daily.