A customer states that since the new firewall has been installed, the customer has not been able to send email. Which of the following ports on the firewall should be checked?
A.
21
B.
25
C.
110
D.
443
Which of the following ports on the firewall should be checked?
A customer states that since the new firewall has been installed, the customer has not been able to send email. Which of the following ports on the firewall should be checked?