| Event Id | 11202 |
| Source | MSExchangePOP3 |
| Description | Logon attempt from to has failed: HrLookupCredentials() call failed with error: A required privilege is not held by the client. |
| Event Information | You can use telnet to verify that the Microsoft Exchange Server service account is missing the <Act as part of the operating system> right. To test this with telnet, perform the following steps: 1. On Windows NT or Windows 95, open a command prompt. 2. At the command prompt, type <telnet [name of computer running Microsoft Exchange Server] 110>. You will get a connection to the computer running Microsoft Exchange Server. The server will issue a greeting banner that may appear as:+OK Microsoft Exchange POP3 Server version 5.0.1457.10 ready The sample telnet session below demonstrates how to verify that the Microsoft Exchange Server computer is missing the required right. In this sample, lines starting with S> are sent by the server and lines starting with C> were sent by the client (telnet). S> +OK Microsoft Exchange POP3 Server version 5.0.1457.10 ready C> USER <userid> S> +OK C> PASS <password> S> -ERR A required privilege is not held by the client. If the Microsoft Exchange Server service account does not have the <Act as part of the operating system> user right, an error will be returned after the PASS command. RESOLUTION To grant the appropriate right to the Microsoft Exchange Server service account, perform the following steps: 1. Start User Manager for Domains. 2. From the Policies menu, select User Rights. 3. Select the Show Advanced User Rights check box. 4. From the list of rights, select Act as part of the operating system. 5. Select Add. 6. Select the Show Users button. 7. Select the Exchange Server service account. 8. Click Add. 9. Click OK until you have completely exited all dialog boxes. |
| Reference Links | POP3 Logon Attempt Fails with Event 11202. |
Catch threats immediately
We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.