Domains with DNS TXT v=spf1 include:usb._netblocks.mimecast.com include:spf.protection.outlook.com include:4550829.spf10.hubspotemail.net -all
There are 3 domains that have DNS TXT set to v=spf1 include:usb._netblocks.mimecast.com include:spf.protection.outlook.com include:4550829.spf10.hubspotemail.net -all. The top 3 records ordered by domain rank are listed below.