Domains with DNS TXT v=spf1 +a +mx +ip4:72.52.228.48 include:relay.mailchannels.net ~all
There are 20 domains that have DNS TXT set to v=spf1 +a +mx +ip4:72.52.228.48 include:relay.mailchannels.net ~all. The top 20 records ordered by domain rank are listed below.