Source: GroupWise Internet Agent.
Explanation: The TCP/IP kernel is not installed correctly or the Internet Agent is unable to take control of port 25 (SMTP port number). Other processes might have control of port 25, thereby preventing the Internet Agent from taking control of port 25.
Action: Unload the TCP/IP kernel then reload it. If another process has control of port 25, unloading the TCP/IP kernel will show it.