[Dovecot] how to setup different quota for multiple namespaces

[Andreas Oster]

Hello all,

I am using dovecot for some time now but always had very basic
configurations. I recently have configured a new, additional namespace
in order to move archived mails (Thunderbird Archives) to another
storage system.

namespace {
  type = private
  separator = .
  prefix = Archives.
  location = maildir:/var/vmail/archive/%Ln/Maildir
  subscriptions = yes
  list = children
  inbox = no
}

This works well but unfortunately I cannot find a solution to either
ignore this new namespace from quota computation or add a separate quota
value for it.

I have integrated user authentication with LDAP and fetch some user
attributes from LDAP entries:

user_attrs =
=home=/var/vmail/%Ln/Maildir,=mail=maildir:/var/vmail/%Ln/Maildir/,otherPager=quota_rule=*:storage=%$

I configured the quota plugin in the following way:

plugin {
        quota = maildir:User quota:ns=
        quota2 = maildir:Archive quota:ns=Archives.
        quota_rule = *:storage=1G
        quota_rule2 = ns=Archives.:ignore
}

unfortunately this does not give the desired result. Folders under the
Archives namespace use the same quota as INBOX.


Does anyone have an idea how to fix this ?

Thank you for your kind help

Andreas