Domains with DNS TXT v=spf1 +a +mx +ip4:221.121.158.141 +ip4:221.121.146.221 +include:relay.mailchannels.net ~all
There are 192 domains that have DNS TXT set to v=spf1 +a +mx +ip4:221.121.158.141 +ip4:221.121.146.221 +include:relay.mailchannels.net ~all. The top 50 records ordered by domain rank are listed below.