When you installed the MTA the installation asks you
what port you want your Webmail client to listen on -
this is your Messenger Express client.
To start this, make sure that when you start the MTA
you either start ALL services, or specify the following
./start-msg store http
Also, you MUST have the following parameter set or your
proxy wont work.
./configutil -o local.service.http.proxy -v 1
We have it working just fine with these minor changes.
For more information, search on Messenger Express.