Domains with DNS TXT v=spf1 ip4:51.79.17.213 ip4:65.21.231.99 include:spf.masterbase.com ip4:138.201.202.31 +a +mx ~all
There is 1 domain that have DNS TXT set to v=spf1 ip4:51.79.17.213 ip4:65.21.231.99 include:spf.masterbase.com ip4:138.201.202.31 +a +mx ~all.