Domains with DNS TXT v=spf1 ip4:172.191.12.171 include:_netblocks.mimecast.com include:_phishspf.knowbe4.com include:servers.mcsv.net ~all
There is 1 domain that have DNS TXT set to v=spf1 ip4:172.191.12.171 include:_netblocks.mimecast.com include:_phishspf.knowbe4.com include:servers.mcsv.net ~all.