Domains with DNS TXT v=spf1 ip4:167.172.173.184 include:zen.zenstud.io include:relay.mailbaby.net +a +mx ~all

There are 4 domains that have DNS TXT set to v=spf1 ip4:167.172.173.184 include:zen.zenstud.io include:relay.mailbaby.net +a +mx ~all. The top 4 records ordered by domain rank are listed below.

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