Microsoft KB Archive/192181

= XADM: Renewing User Certificates in Key Management Server =

Article ID: 192181

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q192181



SUMMARY
In Key Management Server, a user's certificate has a valid lifetime of 18 months by default. After that time, it will expire. Before this happens, the certificate has to be renewed.

At approximately 12 months, the Exchange client or Outlook client will automatically remind the user to renew their certificate. The user will receive the following message when they log on to advanced security:

Your security certificates are approaching expiration.

Do you want to send a certificate update request to the

Key Management Server?

No administrator intervention is required. If the user clicks Yes, the request is sent to the Key Management Server. The new certificate is sent back in e-mail and is valid for another 18 months.



MORE INFORMATION
If the user chooses not to update the certificate, then they will be prompted again the next time they log on to advanced security. If they let the certificate expire, they need to be re-enrolled to be able to use advanced security.

Keywords: kbinfo KB192181

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