Domains with DNS TXT v=spf1 ip4:174.142.221.37 include:relay.spamshield.io +a +mx ~all
There are 60 domains that have DNS TXT set to v=spf1 ip4:174.142.221.37 include:relay.spamshield.io +a +mx ~all. The top 50 records ordered by domain rank are listed below.