Domains with DNS TXT v=spf1 ip4:103.42.110.8 +mx +a +include:spf.protection.outlook.com +include:spf.constantcontact.com -all

There is 1 domain that have DNS TXT set to v=spf1 ip4:103.42.110.8 +mx +a +include:spf.protection.outlook.com +include:spf.constantcontact.com -all.

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