the kolab groupware server continues to grow both in deployment numbers as well as in capabilities. recent releases have added multi-domain support and replication for instance. it also works rather well with kontact and other groupware clients.
to date, management was done via a web interface. this was an improvement for many over the command line but it can still be funky trying to manage a kolab installation with 1000s of users via a web interface. it's not as fast is it could be and adding people (or removing them) from distribution lists isn't much fun.
enter Tobias Koenig, a name familiar to anyone who's been around kde for a while, and his new baby kolabadmin. kolabadmin is a native graphical application manage your kolab servers. it is a qt4 app released under the GPL, so it runs on your platform of choice and is open source.
once logged in you get a pretty window showing your options:
which gives you access to things like the distribution list manager:
in any listing dialog, one can apply a filter to the list (perfect when you have have more than a few dozen entries, which is typical of a production email environment) and when modifying things like distribution lists you can filter then select all the people you want. it's fast and convenient, though the web based admin makes a great fallback for those times you aren't in front of your own computer.
so how do you get kolabadmin? it's currently available via svn at svn://wgess16.dyndns.org/kolabadmin/trunk. after an svn co, simply do a qmake && make. a few minutes later you have a high powered admin tool.
this really raises the expectation bar for open source groupware servers. and for that, i owe you a beer Tobias =)