Domains with DNS TXT v=spf1 ip4:10.21.17.252 ip4:72.52.157.163 +a +mx ~all

There is 1 domain that have DNS TXT set to v=spf1 ip4:10.21.17.252 ip4:72.52.157.163 +a +mx ~all.

Top Domains with TXT set to v=spf1 ip4:10.21.17.252 ip4:72.52.157.163 +a +mx ~all