Domains with DNS TXT v=spf1 ip4:57.128.99.126 +a +mx +ip4:51.89.21.145 include:relay.mailchannels.net ~all

There are 52 domains that have DNS TXT set to v=spf1 ip4:57.128.99.126 +a +mx +ip4:51.89.21.145 include:relay.mailchannels.net ~all. The top 50 records ordered by domain rank are listed below.