Suppose there is Verse configured with F5 or any other load balancer and user mail file exists on 4 servers. MailServer1 and MailServer2 are mail servers on primary site, while MailServerDR1 and MailServerDR2 are mail servers on DR site. Currently the serverlookup servlet which looks into Catalog.nsf can find all 4 mail replicas on these 4 servers. There is no way to restrict the lookup only to mail servers from primary site. This is required when you don't want Verse to failover to DR site. So there is a feature request to provide some notes.ini or some dynamic setting which can be turned off and on easily so as to allow Verse to use DR site mail servers when required.