Systems Security Certified Practitioner (SSCP) — Question 131

Which of the following ports does NOT normally need to be open for a mail server to operate?

Answer options

• A. Port 110
• B. Port 25
• C. Port 119
• D. Port 143

Correct answer: C

Explanation

Port 25 is used for sending emails (SMTP), Port 110 is for retrieving emails (POP3), and Port 143 is for accessing emails (IMAP). Port 119 is associated with the Network News Transfer Protocol (NNTP) and is not necessary for standard mail server operations.