Domains with DNS TXT v=spf1 include:usb._netblocks.mimecast.com include:spf.protection.outlook.com include:mail.zendesk.com ~all

There are 5 domains that have DNS TXT set to v=spf1 include:usb._netblocks.mimecast.com include:spf.protection.outlook.com include:mail.zendesk.com ~all. The top 5 records ordered by domain rank are listed below.

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