Can Action=redirect be used to redirect a client's traffic to a specific mail server?

When considering the use of Action=redirect in the context of MikroTik's firewall or routing capabilities, it is important to understand that this action is specifically designed for redirecting web traffic, typically for HTTP requests. The redirect action modifies the destination of traffic that matches specific rules in the firewall, leading it toward the designated web service, often to facilitate web filtering or captive portal solutions.

Using Action=redirect will not work for general mail servers or other types of traffic because it does not apply to the email protocols such as SMTP, IMAP, or POP3, which operate on different ports. Instead, the action is restricted to web traffic that is typically on port 80 (HTTP) or 443 (HTTPS), where the redirection rules are set to operate.

Therefore, the correct understanding is that Action=redirect cannot be utilized to specifically redirect a client's traffic to a mail server, as it is not designed for non-web traffic. This aligns perfectly with the assertion made in the answer provided.