XFOR: Event ID 115 Error Message Starting SMTP Relay Host Service

• Microsoft Windows NT version 4.0 Option Pack

SYMPTOMS

When you attempt to start the SMTP Relay Host service in the Microsoft Management Console (MMC) for Windows NT Option Pack (NTOP), the following error message may appear in the NT application log:

Event ID: 115
Source: SMTPSVC
Description: Service could not bind instance 1. The data is in the error.

CAUSE

This behavior can occur if a service or program is using port 25. For example, some third-party e-mail programs that send and receive mail on behalf of another program may be utilizing this port. In addition, some anti-virus programs listen over port 25 and scan all incoming and outgoing e-mail messages.

RESOLUTION

To determine whether another program and or service is using port 25, type netstat -an at a command prompt, and then press ENTER.

A list of all available ports and their states (listening or active) is displayed. If there is an entry for port 25 and you are not able to start the SMTPSVC Relay Host service, this likely the program causing the problem. Stop the appropriate service and then try to start the SMTP Relay Host service.

MORE INFORMATION

Transport Control Protocol (TCP) ports cannot be multiplexed or used more than one time in a session. You must stop one service from using a port before another service or program can use it.

Additional query words:

Keywords          : 
Version           : winnt:
Platform          : winnt 
Issue type        : kbprb 

Last Reviewed: April 26, 1999