[Dovecot] Newbie question

Hi, my name is Andrés Rusconi, from Tucumán, Argentina. Sorry my English, please. I am a very happy new user of Dovecot: I gained speed and simplicity with him. But I noticed that in clients who use Outlook, the deleted messages do not copy to the trash folder. This is not critical, but did not happen with Courier, and the users askme about this behavior. If some of you has somehow solved this small question, I will thank for their commentary.

Saludos

Andrés