Domains with DNS TXT v=spf1 +a +mx +ip4:156.155.252.64 include:relay.mailchannels.net ~all

There are 470 domains that have DNS TXT set to v=spf1 +a +mx +ip4:156.155.252.64 include:relay.mailchannels.net ~all. The top 50 records ordered by domain rank are listed below.