Domains with DNS TXT v=spf1 ip4:49.12.80.157 +a +mx +include:relay.mailchannels.net include:spf.hostns.io -all

There are 73 domains that have DNS TXT set to v=spf1 ip4:49.12.80.157 +a +mx +include:relay.mailchannels.net include:spf.hostns.io -all. The top 50 records ordered by domain rank are listed below.