Domains with DNS TXT v=spf1 +a +mx +ip4:174.142.221.50 include:relay.spamshield.io ~all

There are 19 domains that have DNS TXT set to v=spf1 +a +mx +ip4:174.142.221.50 include:relay.spamshield.io ~all. The top 19 records ordered by domain rank are listed below.

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