[Dovecot] Mailbox name

[Xavier Maillard]

Hi,

I am using SIEVE to filter/sort my incoming mails.

I am subscribed to tens of mailing lists and I would like to file
messages into folder of this pattern:

INBOX/list/<tld>/<domain name>/<list name>

So for example help-gnu-emacs at gnu.org would be filed under:

INBOX/list/org/gnu/help-gnu-emacs

The problem is Dovecot is telling me that this mailbox name is
invalid.

What can I do ?

Cheers