[Dovecot] Delete message

Hello,

I'm seeing that our favourite pop3 server only deletes the messages upon logoff:

dele 1 +OK Marked to be deleted. quit +OK Logging out, messages deleted. Connection closed by foreign host.

This is causing me some trouble with a certain webmail app. Is there a way I can instruct Dovecot to immediatelly delete a message ?

10x, Marius