Cluster Limit

Do you rely on clustering to provide failover for mail delivery? Is the number of clusters in your Domino domain growing? Beware - there is a fixed number of clusters in R5 (not sure if it is still there in R6) that cluster.ncf can contain. If you have more, the server starts to forget clusters and is unable to route mail to them. There is a notes.ini setting that can increase the number.