Web Mail server with Qmail

[Lucas do R. B. Brasilino da Silva]

Hi All!

I work for a english school here in Recife, Brazil, and I
setted up a Qmail server that is woking fine (Thanks Dan!!).
Most of our students have emails accounts at free email servers
like yahoo, hotmail and zipmail (brazilian one).
I'd like to provide the same service to these students. Is there 
some Web based Mail server that works with Qmail ??
In time: At the same machine is running apache (thanks apache group! :) ).

        Thanks a lot in advance

bests regards

        Lucas Brasilino