Tip

Beware of Exchange 2003 Internet Mail Wizard errors

Please let others know how useful this tip is via the rating scale at the end of it. Do you have a useful Exchange or Outlook tip, timesaver or workaround to share? Submit it to SearchExchange.com. If we publish

    Requires Free Membership to View

it, we'll send you a nifty thank-you gift.

Exchange 2003's Internet Mail Wizard is designed to walk an administrator through the process of setting up Internet mail connectivity with Exchange Server.

But, it's designed for basic setup only. It's not intended situations where the default SMTP server configuration has been changed. It's also not meant to be used on a Network Load Balancing (NLB) cluster node or a multi-homed server (a server with more than one network interface).

Evan Dodds has identified a problem that comes up occasionally with the Exchange 2003 Internet Mail Wizard that generates a misleading error message.

Sometimes it produces these errors:

An Error occurred during a call to Windows Management Instrumentation
ID no: 8004100e [WBEM_E_INVALID_NAMESPACE]
Exchange System Manager

The selected server fails the following prereqs:
Cannot be part of a Network Load Balancing cluster.

This will even happen on computers that cannot become part of a NLB cluster in the first place, which makes the error that much stranger.

The error code provides a partial clue -- the problem lies in the Windows Management Instrumentation (WMI) namespace for NLB, which may have become damaged or was never registered correctly. The wizard tries to read the namespace to determine if the system is indeed an NLB; upon failure, it assumes that the server is an NLB anyway.

To fix this, you'll need to recreate the NLB namespace in WMI:

  1. Open a command prompt and change to the directory %Systemroot%\System32\WBEM.

  2. Run the command MOFCOMP wlbsprov.mof. This runs the Managed Object Format Compiler (MOFCOMP), which takes the raw class and class instance information for NLB, as stored in an .MOF file, and adds it to the WMI interface's repository.

  3. Reboot just to be on the safe side.

You should now be able to run the Internet Mail Wizard without any more problems.

About the author: Serdar Yegulalp is editor of the Windows Power Users Newsletter.

Do you have comments on this tip? Let us know.

Related information from SearchExchange.com:

  • Tip: When Exchange performance counters don't show up in WMI apps
  • Reference Center: Exchange 2003 tips and resources
  • Reference Center: Exchange clustering tips and resources

    This was first published in May 2006

  • There are Comments. Add yours.

     
    TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

    REGISTER or login:

    Forgot Password?
    By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
    Sort by: OldestNewest

    Forgot Password?

    No problem! Submit your e-mail address below. We'll send you an email containing your password.

    Your password has been sent to:

    Disclaimer: Our Tips Exchange is a forum for you to share technical advice and expertise with your peers and to learn from other enterprise IT professionals. TechTarget provides the infrastructure to facilitate this sharing of information. However, we cannot guarantee the accuracy or validity of the material submitted. You agree that your use of the Ask The Expert services and your reliance on any questions, answers, information or other materials received through this Web site is at your own risk.