OALGen will skip user entry ‘%1’ in address list ‘%2’ because the SMTP address ‘%3’ is invalid. %4

This Error event indicates that the user account specified in the event description has not been included in an offline address list because of an incorrectly configured SMTP address. For example, an incorrectly configured SMTP address is an address that contains a dash “-“, an underscore “_”, or no characters after the @ symbol. Incorrectly configured SMTP addresses can occur in the following circumstances:

• A script modified either a user’s primary SMTP proxy address attribute or e-mail address attribute. These attributes must match for a user to be added to an offline address list.

• An administrator modified the e-mail address of a user on a computer that did not have the Exadmin.dll extensions loaded.

To resolve this error, make sure that the user account specified in the message has a correctly configured SMTP e-mail address. For information about SMTP address mismatches and how to resolve MSExchangeSA event 9325, see “Simple Mail Transfer Protocol Address Mismatches” in Improvements for Offline Address Books.

For more information about this event, see the Microsoft Knowledge Base article 555405, Event ID 9325 is logged by MSExchangeSA while generating Offline Address List.

You can use the proxytest test of the Offline Address Book Integrity tool (OABInteg) to identify the e-mail address that does not match the primary SMTP address for a user. For information about how to use OABInteg, see Microsoft Knowledge Base article 907792, Description of the Offline Address Book Integrity (OABInteg) tool.

For information about troubleshooting offline address book issues, see the Technet Support WebCast, How to troubleshoot Offline Address Book issues in Microsoft Exchange Server.

You can use the Offline Address Book Integrity (OABInteg) tool to troubleshoot offline address list problems. For information about how to use the OABInteg tool, see Microsoft Knowledge Base article 907792, Description of the Offline Address Book Integrity (OABInteg) tool.

For best practices for administering offline address lists, see the Offline Address Book Best Practices Guide.