How closed 25 port, consult experts I used Foxmail transceiver mail, I suggest 25-port occupied, ask the experts how to detect port occupation? How can the closure of the Port of what kind you? How closed 25 port, consult experts Installing a port access software firms ah, there's like asking activeport How closed 25 port, consult experts Netstat-can see, but in active port to shut down [ Closed window ]