What is the difference betweem mailit on filemeker server and mailit installed in local (PC user)?
When plug-in is installed on the Server side, it is only accessible to the FileMaker Server, and inaccessible to any FileMaker Pro Workstations, that are connection to the FileMaker Server. In other words, FileMaker Server does not share any plug-in functionality with connected FileMaker Pro Workstations. Therefore, if you only need the plug-in to be executed on the Server side, such as scheduled ‘Server Side Scripting’ or ‘Instant Web Publishing’, you could install the plug-in strictly on the Server side. Otherwise, if you need the plug-in to be executed also on the Workstations, you should install the plug-in on each Workstation, that will be using the plug-in functions. Please notice, that FileMaker Server includes an ‘AutoUpdate’ facilities, that allows automated plug-in updates distribution to any connected FileMaker Pro Workstations.