Page 18 - CPTE_Prep_Guide_Sample

which can be used to both send and receive
messages. SMTP countermeasures include:

• Ignore spam emails
• Mail response considerations
• Open relay considerations

DNS – enumeration is the process of locating
all the DNS servers and their corresponding
records for an organization. DNS
countermeasures include:

• Prohibit zone transfer
• Check zone files for HINFO
• Avoid social engineering attacks
• Use DNSec

423