Domains with DNS TXT v=spf1 +a +mx +ip4:217.21.72.51 include:relay.mailchannels.net +ip4:45.143.81.178 ~all

There are 4 domains that have DNS TXT set to v=spf1 +a +mx +ip4:217.21.72.51 include:relay.mailchannels.net +ip4:45.143.81.178 ~all. The top 4 records ordered by domain rank are listed below.

Top Domains with TXT set to v=spf1 +a +mx +ip4:217.21.72.51 include:relay.mailchannels.net +ip4:45.143.81.178 ~all