Domains with DNS TXT v=spf1 ip4:66.45.251.133 +a +mx +include:relay.mailchannels.net -all
There is 1 domain that have DNS TXT set to v=spf1 ip4:66.45.251.133 +a +mx +include:relay.mailchannels.net -all.
There is 1 domain that have DNS TXT set to v=spf1 ip4:66.45.251.133 +a +mx +include:relay.mailchannels.net -all.