[Dovecot] create folder automatically

[Eduardo M KALINOWSKI]

From: Nicolas Letellier
> Indeed, the folder is created with the sieve rule (cf precedent mail). I
> see this line in my deliver log:
> 
> Oct  1 10:48:42 trinite deliver(test at domain.fr):
> msgid=<20081001090028.CD851886C at mail.domain.biz>: saved mail to Junk
> 
> However, when we connect us in the webmail, or download mail with IMAP,
> the folder is not present.
> 
> The folder is created, but no line about it is present in subscriptions
> file. So, the folder is not viewable.

If I remember correctly, recently it was added an option to deliver to 
autosubscribe to created folders. I think it is only available in the git 
version.