At this time, SmarterTrack does not include any way to directly import users from external sources. As Michael suggested in his initial comment, the best way to currently implement this would be to build a import system that takes advantage of the APIs that are provided by SmarterTrack.
One of the difficulties with building import capability into our system is that each potential source will have a different format. This means that, if we were to provide the ability to import users, a new importer would need to be written and maintained for every potential source. This is further complicated because SmarterTrack is compatible with multiple databases (SQL Server, MySQL, and and similar DBs).
Andrew Barker
Software Developer
SmarterTools Inc.
www.smartertools.com