A network administrator is configuring a firewall to allow for a new cloud-based email server. The company standard is to use SMTP to route email traffic. Which of the following ports, by default, should be reserved for this purpose?
A network administrator is configuring a firewall to allow for a new cloud-based email server. The company standard is to use SMTP to route email traffic. Which of the following ports, by default, should be reserved for this purpose?
SMTP (Simple Mail Transfer Protocol) uses port 25 by default for email transmission. Therefore, to configure a firewall for a new cloud-based email server using SMTP, port 25 should be reserved.
B. 25 SMTP (Simple Mail Transfer Protocol) is the protocol commonly used for email transmission. By default, SMTP uses port 25 for communication. Therefore, to allow for a new cloud-based email server that uses SMTP, the network administrator should reserve port 25 in the firewall configuration.
23 - Telnet 25 - SMTP 53 - DNS 110 - POP3
25 - Simple Mail Transport Protocol - email routing
B. 25.