Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:eu._netblocks.mimecast.com include:mailgun.org -all

There are 3 domains that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:eu._netblocks.mimecast.com include:mailgun.org -all. The top 3 records ordered by domain rank are listed below.

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