Problem

When the domino server caches an MX record, and that record changes, it may take time before the cache is refreshed. In some instances it is desirable to have the DNS cache refreshed on demand.

Solution

On the Domino console (IBM Domino Administrator -> Server… -> Status -> Server Console) run the following domino command:

If you need the cache to be refreshed more often, you can set this command to run on a schedule as well.