[Dovecot] imap processes remaing after dovecot shutdown

Hello,

I'm using dovecot-1.0.beta3. When I shutdown dovecot (kill -term on the master-pid) the main process disappears, but all the child processes still remain. Why doesn't dovecot kill them as I shutdown the master-process? When I shutdown mysql, all child processes will be shutdown, too. When I shutdown apache, all child processes willbe shutdown, too. Thats what I expect on every application. Usually there is no need to shutdown dovecot. But for some reasons, from time to time 50 and more processes of one user are running and I don't know how else to get rid of them. I don't like to kill the child processes always manually.

Regards Marten