[Dovecot] Dovecot stop accepting command When reading disk quota (soft)

Hello all,

I've face some problem here and I think it should be the way.

1. I'm running Dovecot version 0.99.10.4 (fc1 release) on RH9
2. One of the users have reach the soft disk quota limits
3. Dovecot stop the users from deleting email.

What I think was, dovecot should let the user continue to use the services until it reach the hard limits, but pop up message each and every time ;).

Anyone have that problem before?

Thank You Chan Min Wai