Domains with DNS TXT v=spf1 +mx +a +ip4:54.154.135.21 +ip4:172.31.8.40 +include:spf.protection.outlook.com -all

There are 9 domains that have DNS TXT set to v=spf1 +mx +a +ip4:54.154.135.21 +ip4:172.31.8.40 +include:spf.protection.outlook.com -all. The top 9 records ordered by domain rank are listed below.

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