[ActiveDir] Listserv software with Active Directory intergration

[Steve Shaff]

Group, Does anyone know of a piece of software for creating / maintaining listserv(s) that integrates with Active Directory and/or Sharepoint?  Management wants to create“collaboration” between departments and other groups, internally, for issues or discussions.  They looked at the Sharepoint collab, but it was not robust enough for them. Any thoughts? Thanks S