[ Thanks to hanscees for this link.
]
“Roughly a year ago I reviewed a mail server for Linux that
features integration with Microsoft’s Outlook and offers
calendaring/scheduling options with shared busy/free information.
However, it did not have many features that Outlook offers in
corporate mode, including sending meeting requests to groups of
users who can then reply and delegating rights so secretaries can
manage their bosses agendas on-line. This current review shows a
year’s time was enough for Linux solutions to arise that can
compete with Microsoft Exchange and Outlook and offer a lower
price, with all the important features included.“Two important issues should be discussed by administrators who
want to get rid of Microsoft Exchange as their groupware solution,
but who also need to offer a equally functional alternative. Right
now, we have Bynari’s InsightServer, which can be used as an
Exchange replacement while still using Outlook on workstations.
Still in development, the Kroupware project is moving fast to
produce an equally functional solution that is fully open-source
and free (as in free beer). For the time being, the Kroupware
project works only with Linux (*nix) clients. The Kroupware project
is the product of the German government going open-source…”