doveadm acl set negative rights not supported?

Hi all,

I'm trying to set an ACL with negative rights. I have no problems setting it with standard IMAP commands, but I'm unable to do it with the doveadm acl command.

I tried:

sudo -u vmail doveadm acl set -u "user@domain" Spam user="-user@domain" lookup (notice the "-" before the username)

Unfortunately, this adds a (positive) ACL for the user named "-user@domain" instead of adding a negative one for the user "user@domain".

Am I messing up something or is negative ACL support missing from doveadm? I have not seen anything in the docs about this...

Regards,

Peter