[Dovecot] Autosubscribe new folders

[For@ll]

Hi,

I have a sieve filter:

require ["fileinto","reject","body"];

if header :contains "subject" "NOTE"
{
     if body :content "application/pdf" :contains "" {
         redirect "notes at domena.com";
     }
     else
     {
         reject text:
Lack attachment PDF!
.
         ;
         stop;
     }
}

When I get a new message, in user folder is automaticly created folder 
like subject but is not subscribed. What I must settings in dovecot to 
automaticly subscribe folders to subscriptions files.?