The folder check utility scans through the Sun Message Store and the user folders verifying links. That is, it verifies that all the messages in the folders are accessible. In addition to running the folder check utility at regular intervals for maintenance, you can also run this utility after a system failure to ensure that all message deliveries were made while the system was in a questionable state. If the utility determines that messages are not in user folders and hence were not delivered, it will redeliver the messages.
You can invoke the folder check utility by issuing the imcheck command at a command line interface. For information on the imcheck command, refer to the SIMS Reference Manual.