Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:servers-spf.cathree.com include:mailgun.org include:_spf.psm.knowbe4.com -all

There are 2 domains that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:servers-spf.cathree.com include:mailgun.org include:_spf.psm.knowbe4.com -all. The top 2 records ordered by domain rank are listed below.

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