Domains with DNS TXT v=spf1 ip4:212.1.210.51 include:relay.mailchannels.net include:mailchannels.net a mx ~all

There are 40 domains that have DNS TXT set to v=spf1 ip4:212.1.210.51 include:relay.mailchannels.net include:mailchannels.net a mx ~all. The top 40 records ordered by domain rank are listed below.