To address the issue, login to the CAS web console and do the following:

• For expiring API integration:
  1. Go to Administration > Automation and Integration APIs
  2. Select the token and click Refresh.
  3. For more information, refer to this documentation.
• For expiring ScanMail for Microsoft Exchange (SMEX) integration:
  1. Go to Administration > Service Account

     

     ^{Click the image to enlarge.}

  2. Select the token and click Remove.
  3. To re-register, follow this documentation.

If you need further assistance, contact Trend Micro Technical Support.