Question and response
Question
dig psm.knowbe4.com. TXT
Answer
psm.knowbe4.com. 300 TXT "v=spf1 ip4:23.21.109.197 ip4:23.21.109.212 ip4:34.199.159.209 ip4:34.197.134.60 ip4:147.160.167.14 ip4:147.160.167.15 ip4:52.49.235.189 ip4:52.49.201.246 ip4:34.251.106.174 -all"
Authority
psm.knowbe4.com. 172800 NS ns-1383.awsdns-44.org.
psm.knowbe4.com. 172800 NS ns-1560.awsdns-03.co.uk.
psm.knowbe4.com. 172800 NS ns-457.awsdns-57.com.
psm.knowbe4.com. 172800 NS ns-815.awsdns-37.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0