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

There are 1,389 domains that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com -all. The top 50 records ordered by domain rank are listed below.