Domains with DNS TXT v=spf1 include:emailsrvr.com include:spf-esec-us.heimdalsecurity.com include:spf-esec.heimdalsecurity.com include:_spf.psm.knowbe4.com -all

There is 1 domain that have DNS TXT set to v=spf1 include:emailsrvr.com include:spf-esec-us.heimdalsecurity.com include:spf-esec.heimdalsecurity.com include:_spf.psm.knowbe4.com -all.

We're currently tracking 379,984,061 DNS TXT records. Use our API to retrieve detailed information for DNS domains and records. Data is updated daily.