Domains with DNS TXT v=spf1 +a +mx include:relay.mailchannels.net +ip4:173.247.255.161include:relay.mailchannels.net -all
There is 1 domain that have DNS TXT set to v=spf1 +a +mx include:relay.mailchannels.net +ip4:173.247.255.161include:relay.mailchannels.net -all.