Don't count namespace space in quota

[Aki Tuomi]

1
> On 23/03/2021 21:33 Pedro Ribeiro <pribeiro at net.ipl.pt> wrote:
> 
> 
> Hello everyone!
> I'm trying to figure a solution for this scenario.
> I have the Dovecot IMAP using MDBOX (SIS) storage for the daily usage email.
> 
> For long term storage I'm preparing a namespace with MBOX storage.
> I'm not using the altstorage logic because as far as I know it needs to have the same format as the base one and for archival I prefer to have the attachments inside the messages in an old/well known format supported by near any email software.
> The problem at the moment is with quotas.
> If the user has 5GB in his mailboxes and the long term "historico" namespace has another 5GB, the storage used becomes 10GB and I want the users to only see their "active" usage (5GB).
> I have that space to be ignored (as defined in the wiki and dovecot documentation - my quota_rule5) but it doesn't seem to influence the usage reported by IMAP.
> 
> What am I doing wrong?
> If I put the "historico" namespace with disabled = yes and do a "doveadm quota recalc" the values become correct but I need the namespace available so the users can recover their old messages if needed.
> 
> The relevant settings (AFAIK) I'm using are:
> > plugin {
> >  quota = dict:FileQuota:ns=:file:%h/dovecot-quota
> >  quota2 = dirsize:HistQuota:ns=@HISTORICO/
> >  quota_clone_dict = proxy::quota
> >  quota_grace = 10%%
> >  quota_rule = *:storage=24G
> >  quota_rule2 = Trash:storage=+128M
> >  quota_rule3 = Junk:storage=+64M
> >  quota_rule4 = INBOX:storage=+128M
> >  quota_rule5 = ns=@HISTORICO:ignore
> >  }
> > 
> > namespace historico {
> >  disabled = no
> >  hidden = no
> >  ignore_on_failure = yes
> >  inbox = no
> >  list = no
> >  location = mbox:/mnt/mail-hist/historic/%d/%-2.2n/%n:SUBSCRIPTIONS=.imap/dovecot-subscriptions:LAYOUT=maildir++
> >  order = 0
> >  prefix = @HISTORICO/
> >  separator = /
> >  subscriptions = yes
> >  type = private
> >  }
> >  namespace inbox {
> >  disabled = no
> >  hidden = no
> >  ignore_on_failure = no
> >  inbox = yes
> >  list = yes
> >  location =
> >  order = 0
> >  prefix =
> >  separator = /
> >  subscriptions = yes
> >  type = private
> >  }
> >  userdb {
> >  args = /etc/dovecot/dovecot-sql.conf.ext
> >  auth_verbose = default
> >  default_fields = home=/data/domains/%d/%-2.2n/%n lport=%{lport}
> >  driver = sql
> >  }
> > 
> best regards to all the Dovecot community, stay safe!
> 
> -- 
> Best regards,
> 

I think this should be:

quota2_rule = ns=@HISTORICO:ignore

Aki