Imanami surpasses Microsoft's Dynamic Distribution Group (which requires remote Powershell usage and is limited to Email Distribution Groups) because Imanami's GroupID has an easy to use Graphical Interface to create dynamically maintained groups - for BOTH Email Distribution groups AND Security groups (which Microsoft does NOT support with DDG or their older QBDG). In addition, Microsoft's DDGs do not show the individual members to the consumers of the group since it calculates the group whenever the email is sent. I like the fact that Imanami uses standard groups where a consumer of a group can see/list the individual members since they dynamically update the static group based upon how often you desire to do so. (We update ours 3 times a day - immediately after we export current HR data into our Active Directory.)