Knowledge Base

Incorrect address or SOAP action


The CodeTwo Exchange Rules Service (of CodeTwo Exchange Rules Pro or CodeTwo Exchange Rules) does not start. An error window might appear (Fig. 1.), with the following message:

There was no endpoint listening at http://localhost:5020/ER.Engine/SettingsStorage/Viewer that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.

The above error might also be included in the log files.

Fig. 1. A window with error message.

The Event Viewer (Fig. 2.) log files might contain the error message presented below:

Fatal error starting engine service. Exception has been thrown by the target of an invocation.

Fig. 2. An error that can be logged by the Event Viewer.


These errors might indicate that the CodeTwo Exchange Rules Service is either not running or malfunctioning. They might occur if you use the older version of CodeTwo software (such as CodeTwo Exchange Rules Pro version 2.2 and earlier).

To solve this problem:

  • Update your CodeTwo product to the newest version.
  • If you're using an up-to-date version of CodeTwo software and the issue still persists, perform a complete reinstallation of the program.
  • If the above solutions do not fix the problem, contact our Support.

See also: