Domains with DNS TXT v=spf1 +a +mx +ip4:120.138.21.128 include:relay.mailchannels.net include:spf.supercp.com ~all
There is 1 domain that have DNS TXT set to v=spf1 +a +mx +ip4:120.138.21.128 include:relay.mailchannels.net include:spf.supercp.com ~all.