Hello. We are preparing to change our Exchange 2003 Organization from mixed mode to native. However, we have an active/passive cluster as well as an additonal server geographically removed from us. I know that the setting is changed for the orgainization in the ESM and have no problem (there have never been any legacy systems in this org). However, is there any particular way to handle the cluster and/or the distant server after change is made? I can't find anything but with the criticality and visability of email these days, would like to be aware of any gotchas before they get us.