Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:spf.zixsmbhosted.com include:usb._netblocks.mimecast.com -all

There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:spf.zixsmbhosted.com include:usb._netblocks.mimecast.com -all.

Top Domains with TXT set to v=spf1 include:spf.protection.outlook.com include:spf.zixsmbhosted.com include:usb._netblocks.mimecast.com -all