Domains with DNS TXT v=spf1 mx include:usb._netblocks.mimecast.com include:smtp.secureserver.net include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 mx include:usb._netblocks.mimecast.com include:smtp.secureserver.net include:spf.protection.outlook.com -all.