Domains with DNS TXT v=spf1 ip4:156.155.252.37 +a +mx +include:_netblocks.mimecast.com include:spf.protection.outlook.com ~all
There is 1 domain that have DNS TXT set to v=spf1 ip4:156.155.252.37 +a +mx +include:_netblocks.mimecast.com include:spf.protection.outlook.com ~all.