Domains with DNS TXT v=spf1 include:psm.knowbe4.com include:za._netblocks.mimecast.com include:_spf.google.com -all
There is 1 domain that have DNS TXT set to v=spf1 include:psm.knowbe4.com include:za._netblocks.mimecast.com include:_spf.google.com -all.