Integration Server 10.3 | Integration Server Administrator's Guide | Configuring Integration Server for Secure Communication | Usage of CA Certificates: Technical Considerations | Handling Expired CA Certificates
 
Handling Expired CA Certificates
At times, one or more CA certificates in a chain may pass their expiration dates. When a web browser connects to the Internet resource having such an expired certificate, it might still accept the connection. The web browser can accept the connection if it can access a valid certificate for the CA with the expired certificate. Integration Server, however, cannot connect to a resource with an expired signing certificate in the chain, unless explicitly configured to do so.
In certain cases, you may want Integration Server to accept a connection when one or more of its CA certificates are expired. In cases such as these, you may need to change a server configuration property. For more information, refer to Working with Extended Configuration Settings. Remember to restart the server after changing the setting.
Note:
It is less secure to ignore the expired certificates than to deny the connection because of expired certificates.