[Dovecot] Automatically deleting Trash a la Courier

[Francisco Reyes]

Timo Sirainen writes:

>   #expire = Trash 7 Spam 30

Does the above mean one will be able to indicate multiple folders to expire?

That is great!
Any thoughts on having a per mailbox setting?
For ISPs , one may want to give users the option to enable/disable the 
feature and perhaps give them a choice of dates.. ie Trash 7 days or 30 
days. Spam 1 day or 7 days.