Domains with DNS TXT v=spf1 a mx ip4:139.99.36.214 ip4:51.79.168.215 ip4:35.221.70.28 include:relay.mailchannels.net -all
There is 1 domain that have DNS TXT set to v=spf1 a mx ip4:139.99.36.214 ip4:51.79.168.215 ip4:35.221.70.28 include:relay.mailchannels.net -all.