Domains with DNS TXT v=spf1 ip4:144.217.72.92 ip4:206.198.186.60 ip4:199.43.205.197 include:mailchannels.net +a +mx +include:relay.mailchannels.net -all

There are 36 domains that have DNS TXT set to v=spf1 ip4:144.217.72.92 ip4:206.198.186.60 ip4:199.43.205.197 include:mailchannels.net +a +mx +include:relay.mailchannels.net -all. The top 36 records ordered by domain rank are listed below.