The SMTP exit module does not work on Windows Server Core
Assume the following scenario:
- A certification authority is installed on Windows Server Core.
- The SMTP exit module supplied with the certification authority is configured.
- However, the certification authority does not send e-mails.
- In the event log, event no. 46 is logged with the following error message:
The "Windows default" Exit Module "Initialize" method returned an error. Class not registered The returned status code is 0x80040154 (-2147221164). The Certification Authority was unable to initialize email messaging objects.
Cause
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The "Windows Default" exit module cannot be used on Windows Server Core because the Collaboration Data Objects (CDO) libraries required for e-mail dispatch by the module are not installed here.
If the functions are not needed, the exit module can be completely deactivated .
An example project for creating your own exit module can be found in the article "Create an exit module for the certification authority in C# ".
Related links:
- Create an exit module for the certification authority in C#
- Operating the certification authority without an exit module
External sources
- AD CS Exit Module "Class Not Registered" Error (Microsoft TechNet Forums)
- Collaboration Data Objects (Wikipedia)
- How to use the Cdosys.dll library to send an e-mail message with attachments (Microsoft)
- Where to acquire the CDO Libraries (all versions) (Microsoft)