Domains with DNS TXT v=spf1 ip4:216.37.42.75 include:relay.mailchannels.net +a +mx ~all
There are 22 domains that have DNS TXT set to v=spf1 ip4:216.37.42.75 include:relay.mailchannels.net +a +mx ~all. The top 22 records ordered by domain rank are listed below.