Adjust the command to your needs if you like to assign more granular rights per user (use `-u user@domain` instead of `-A` for example).
## Allow authenticated users access to the whole public namespace
To allow all authenticated users access full access to the whole public namespace and its subfolders, create a new `dovecot-acl` file in the namespace root directory:
Open/edit/create `/var/lib/docker/volumes/mailcowdockerized_vmail-vol-1/_data/public/dovecot-acl` (adjust the path accordingly) to create the global ACL file with the following content:
```
authenticated kxeilprwts
```
`kxeilprwts` equals to `lookup read write write-seen write-deleted insert post delete expunge create`.
You can use `doveadm acl set -u user@domain "Public/Develcow" user=user@domain lookup read` to limit access for a single user. You may also turn it around to limit access for all users to "lr" and grant only some users full access.