"All" e-mails special use folder support

[L-o-x]

Hello,

I use Dovecot as backend. I have added an "All" virtual folder that shows like this is Thunderbird, which is ugly and not friendly as it shows at the end of the folder list :

So I have added a special use folder for it :

namespace inbox {
  mailbox virtual/All {
    special_use = \All
    comment = All my messages
    auto = subscribe
  }
}

But it doesn't work. It works with other clients like Roundcube or Nextcloud Mail. It should display an "All" folder at the top of the folders list. It would be very useful to browse threaded conversation.

[Jon]

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