Domains with DNS TXT v=spf1 include:us._netblocks.mimecast.com include:_spf.createsend.com include:spf.protection.outlook.com include:zcsend.net -all
There is 1 domain that have DNS TXT set to v=spf1 include:us._netblocks.mimecast.com include:_spf.createsend.com include:spf.protection.outlook.com include:zcsend.net -all.