[Dovecot] Newbie question

[Andrés Rusconi]

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