CompTIA A+ Core 1 (220-1001) — Question 157

A company is hosting a Windows email server on its premises. Company policy is to use encryption on incoming an outgoing email services. An administrator recently upgraded the company's firewall. Users report they can receive email, but no one can send email. Which of the following ports should the administrator open on the new firewall?

Answer options

Correct answer: D

Explanation

Port 465 is used for SMTPS, which is SMTP over SSL/TLS, allowing for secure email transmission. Since the company policy requires encryption for outgoing emails, this port must be opened to enable users to send emails securely. The other ports listed do not pertain to secure email transmission, hence they would not resolve the sending issue.