dovecot - Apr 2011 - is it posible to autocreate imap folders with non ascii chars?

Hello.

I'm migrating from cyrus to dovecot and now after i converted mailboxes to
Maildir.  Some users already has imap folders with cyrillic chars.
How could i autocreate folders with cyrillic chars?  When i type
something like:
...
autocreate = utf8_chars
autosubscribe = utf8_chars
...

In logs i see that dovecot complains:
Apr 05 16:21:43 imap(pavelkor): Debug: autocreate: Failed to create mailbox
utf8_chars: Invalid mailbox name

It is even possible to achieve?

On 5.4.2011, at 15.31, Igor Zinovik wrote:
> autocreate = utf8_chars
> autosubscribe = utf8_chars
> ...
> 
> In logs i see that dovecot complains:
> Apr 05 16:21:43 imap(pavelkor): Debug: autocreate: Failed to create mailbox
utf8_chars: Invalid mailbox name
With v2.1 you can directly UTF-8 characters there. With older versions you need
to convert the mailbox names to mUTF-7. With v2.0 you can do this with doveadm:

doveadm mailbox mutf7 utf8_chars

Use the result as the mailbox name.

On Apr 05, Timo Sirainen wrote: 
> With v2.1 you can directly UTF-8 characters there. With older versions you
need to convert the mailbox names to mUTF-7. With v2.0 you can do this with
doveadm:
> 
> doveadm mailbox mutf7 utf8_chars
> 
> Use the result as the mailbox name.
Thanks Timo.  That works for me.  Forgot to mention that I use dovecot 2.0.11