Domains with DNS TXT v=spf1 +mx +a +ip4:13.43.7.54 +include:relay.mailchannels.net -all

There is 1 domain that have DNS TXT set to v=spf1 +mx +a +ip4:13.43.7.54 +include:relay.mailchannels.net -all.

Top Domains with TXT set to v=spf1 +mx +a +ip4:13.43.7.54 +include:relay.mailchannels.net -all