Domains with DNS TXT v=spf1 +mx +a +ip4:216.37.42.139 +include:relay.mailchannels.net ~all
There are 16 domains that have DNS TXT set to v=spf1 +mx +a +ip4:216.37.42.139 +include:relay.mailchannels.net ~all. The top 16 records ordered by domain rank are listed below.