Topic Last Modified: 2010-04-29

The Microsoft Exchange Server 2010 Management Pack for System Center Operations Manager monitors the Windows Application log on computers running Exchange 2010 and generates this alert when the events specified in the following Details table are logged.

To learn more about this alert, in Operations Manager, do one or more of the following:


Product Name


Product Version

14.0 (Exchange 2010)

Event ID


Event Source


Alert Type


Rule Path

Microsoft Exchange Server/Exchange 2010/Mailbox/System Attendant

Rule Name

Unable to generate e-mail addresses because no valid e-mail address types were specified.


This Error event indicates that the Microsoft Exchange e-mail address generator could not find any valid address types in the Address-Types container in Active Directory. The address types are found in the Configuration context of Active Directory under Services/Microsoft Exchange/<Organization>/Addressing/Address-Types. You can use an Active Directory tool such as ADSI Edit to access the Address-Types container..

User Action

To resolve this error, follow one or more of these steps:

  • Use Active Directory Service Interfaces (ADSI) Edit or the LDIFDE utility to extract the list of address types from Active Directory. The following is an example LDIFDE command:

    Ldifde -f addressTypes.wri -d "cn=address-types,cn=addressing,cn=[first organization],cn=microsoft exchange,cn=services,cn=configuration,dc=contoso,dc=com", L cn,

    You must modify this example to reflect the first organization and Active Directory domain of your organization.
  • Examine the list of address types. The address types should contain the standard list of address types, GWISE:AMD64, GWISE:i386, NOTES:AMD64, NOTES:i386, SMTP:AMD64, SMTP:i386, and X400:AMD64, X400:i386. These address types are set during the installation of Exchange. If the list of address types does not match the standard list of address types, contact Microsoft Product Support Services for help. For information about how to contact support, visit Microsoft Help and Support.

For more information, see the following resources:

For More Information

If you are not already doing so, consider running the Exchange tools created to help you analyze and troubleshoot your Exchange environment. These tools can help make sure that your configuration aligns with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. To run these tools, go to the Toolbox node of the Exchange Management Console. To learn more about these tools, see Managing Tools in the Toolbox.