Domains with DNS TXT v=spf1 a mx ptr include:secureserver.net a:dispatch-us.ppe-hosted.com include:_spf.psm.knowbe4.com ~all
There are 3 domains that have DNS TXT set to v=spf1 a mx ptr include:secureserver.net a:dispatch-us.ppe-hosted.com include:_spf.psm.knowbe4.com ~all. The top 3 records ordered by domain rank are listed below.