Root zone
These servers manage the DNS root zone
all servers delegate to
com.
These servers manage the com zone
all servers delegate to
amazonaws.com.
These servers manage the amazonaws.com zone
all servers delegate to
ca-central-1.amazonaws.com.
These servers manage the ca-central-1.amazonaws.com zone
all servers delegate to
inbound-smtp.ca-central-1.amazonaws.com.
These servers manage the inbound-smtp.ca-central-1.amazonaws.com zone