[Dovecot] Please help with Quota dict mysql configuration

[Denis Iskandarov]

Thanks for your samples, they would help me so much!
My config is commented because i didn't know how to properly configure
it, didn't understand theory to start doing things on practice.
can you show me your dovecot-mysql.conf as well ? it should be final
peace of puzzle for me.
i'm interested in this two almost different user_query lines:

user_query = SELECT concat('/home/vmail/', maildir) as home,
concat('maildir:/home/vmail/', maildir) as mail, 1001 AS uid, 12 AS
gid, concat('maildir:storage=', quota) AS quota FROM mailbox WHERE
username = '%u' AND active = '1'

user_query = SELECT maildir, 1001 AS uid, 1001 AS gid,
CONCAT('dict:storage=',floor(quota/1000),' proxy::quota') as quota
FROM mailbox WHERE username = '%u' AND active='1'

first one provided from dovecot wiki and second one from postfixadmin
docs regarding dovecot configuration.
may i use user_query like this? :

user_query = SELECT concat('/home/vmail/', maildir) as home,
concat('maildir:/home/vmail/', maildir) as mail, 1001 AS uid, 12 AS
gid, CONCAT('dict:storage=',floor(quota/1000),' proxy::quota') AS
quota FROM mailbox WHERE
username = '%u' AND active = '1'

seems like this line doing some nice customization showing quota in
kilobytes and not in bytes. or if someone could explain what does this
string means.
also what does this line means ?:
concat('maildir:/home/vmail/', maildir) as mail
string about home i understood dovecot reads users home dir from this line.
And i dont understand if why should i indicate in 10-mail.conf next string:
mail_location = maildir:/home/vmail/%d/%u
If it is overided by user_query from mysql?

Also what is meaning of quota(2) table. does dovecot reading
configuration from there or just stores usage information ?
Also what does this string mean?: pattern = priv/quota/messages
what privileges those who reads the, or where are they indicated ?

Thanks in advance.
Denis.

> Maybe stupid, but are these  plugin examples really from your dovecot.conf
> file ?
> If so remove the # before the quota lines!
>
> this is my part from dovecot.conf (only relavant quota parts.)
>
>  quotadict = mysql:/usr/local/etc/dovecot/dovecot-dict-quota.conf
>
> plugin {
> # Quota config
>  quota = dict:User quota::noenforcing:proxy::quotadict
>  quota_rule = *:storage=1G
>  quota_rule2 = Trash:storage=+100M
>  quota_warning = storage=95%% quota-warning 95 %u
>  quota_warning2 = storage=90%% quota-warning 90 %u
>  quota_warning3 = storage=80%% quota-warning 80 %u
>  #OTHER Plugins
> ....
> ....
> }
>
> service quota-warning {
>  executable = script /usr/local/bin/quota-warning.sh
>  user = vmail
>  unix_listener quota-warning {
>  user = vmail
>  }
> }
>
> protocol imap {
>  imap_client_workarounds = delay-newmail tb-extra-mailbox-sep
>  imap_idle_notify_interval = 120 s
>  imap_logout_format = bytes=%i/%o
>  imap_max_line_length = 65536
>  mail_plugins = quota imap_quota autocreate acl imap_acl mail_log notify fts
> fts_squat
> }
>
> protocol lmtp {
>  auth_socket_path = /var/run/dovecot/auth-master
>  mail_plugins = sieve quota acl mail_log notify
>  postmaster_address = postmaster at yourdomain.com
>  sendmail_path = /usr/local/sbin/sendmail
> }
>
> Above protocol lmtp could be protocol lda in your case
>
> This is my dovecot-dict-quota.conf  file
>
> # Dovecot 2.0.x
> connect = host=192.xxx.xxx.xxx dbname=postfix user=postfix
> password=mypostfixpasswd
> map {
>  pattern = priv/quota/storage
>  table = quota2
>  username_field = username
>  value_field = bytes
> }
> map {
>  pattern = priv/quota/messages
>  table = quota2
>  username_field = username
>  value_field = messages
> }
>
> This is my /usr/local/bin/quota-warning.sh file
>
> #!/usr/local/bin/bash
> PERCENT=$1
> USER=$2
> cat << EOF | /usr/local/libexec/dovecot/deliver -d $USER -o
> "plugin/quota=maildir:User quota:noenforcing"
> From: support at yourdomain.com
> Subject: quota warning
>
> Uw mailbox is momenteel voor $PERCENT% gevult.
> Verwijder oude mail, of vraag een verruiming van uw quota aan.
>
> Your mailbox is now $PERCENT% full.
> Please remove some old mail, or ask for a larger quota.
>
> Skrzynka pocztowa jest w tym momencie w $PERCENT% zapelniona.
> Usun stare wiadomosci,albo przenies w inny folder.
>
> EOF
>
> Hope this helps.
>
> Regards,
> Johan Hendriks
> Double L Automatisering