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--- start:howto:dovecot_plus_database_quota [2012/01/10 08:46]
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+++ start:howto:dovecot_plus_database_quota [2013/06/10 09:42]
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@@ Line 1: / Line 1: @@
-**__ALERT: This document is currently being rewritten, only experienced people should use this__**
+===== Email modifications from default imscp install =====
-===== Dovecot modifications from default imscp install =====
 This is an improved version from the original article in ispcp (http://isp-control.net/documentation/howto:mail:replace_courier_with_dovecot)
-All the parts related to the default install where removed since imscp already takes care of that, and it's focused to add the functionality that is available only on dovecot (instead of courier).
+The default install suits most of the needs, so this document is focused to add some functionality that is available only on dovecot (not always in courier).
-The required dovecot version is now 1.2 (squeeze's default)
+The required dovecot version is now 1.2 (squeeze's default) or newer.
-===== Changes from standard dovecot in imscp =====
+===== Changes from standard mail setup in imscp =====
   * Alias and subdomains can be used as a full mail domains
-  * Warning users that are overquota
+  * Global sieve filtering (already enabled by default but without config)
 ===== Reasons to use dovecot =====
@@ Line 18: / Line 16: @@
   * You can block users after they are exceeding their quotas.
   * Dovecot is really fast and reliable
+  * Warning users that are overquota
 Please report any bugs/hints/whatever in the following board thread:
 http://forum.i-mscp.net/showthread.php?tid=61
-**NOTE:** There are currently no means to configure the quota for imscp other than fiddling with the database. The functionality from http://www.isp-control.net/forum/thread-8483.html should be imported.
-**NOTE:** If you want to edit the quota directly; it is stored in bytes in the table "mail_users" in a field named "quota".
 ===== Replace Courier with Dovecot =====
@@ Line 32: / Line 26: @@
 ===== Optional features =====
-==== Sieve filtering ====
+==== Global sieve filtering ====
+Dovecot will look for the global sieve script located in /etc/dovecot/sieve/dovecot.sieve, it can be edited to suit your needs with more functionality.
+In the sample below, it moves all the mails tagged as spam to the Junk folder of the mail user:
+<code>require "fileinto";
+if exists "X-Spam-Flag" {
+	if header :contains "X-Spam-Flag" "YES" {
+       	fileinto "INBOX.Junk";
+	stop;
+	}
+}</code>
-There is the global script located in /etc/dovecot/sieve/dovecot.sieve, it can be edited to suit your needs with more functionality.
-In the default install it moves all the mails tagged as spam to the Junk folder of the mail user.
 More info about sieve syntax and usage: http://wiki.dovecot.org/LDA/Sieve
@@ Line 43: / Line 46: @@
 Being example2.com an alias of example1.com, whenever we create a mailbox in example1.com the same mailbox in example2.com becomes a redirection.
 So creating [email protected] will also receive the mail from [email protected] automatically. That can be used when a customer don't want the hassle of managing two mail domain (and having to set manually every mail address two times).
+==== The changes we have to do in postfix ====
+In the file main.cf (proposed changes are for the template), from:
+  virtual_mailbox_domains = hash:{MTA_VIRTUAL_DMN_HASH}
+  virtual_mailbox_maps = hash:{MTA_VIRTUAL_MAILBOX_HASH}
+To:
+  #virtual_mailbox_domains = hash:{MTA_VIRTUAL_DMN_HASH}
+  virtual_mailbox_domains      = mysql:/etc/postfix/mysql_virtual_domains.cf
+  #virtual_mailbox_maps = hash:{MTA_VIRTUAL_MAILBOX_HASH}
+  virtual_alias_maps           = hash:{MTA_VIRTUAL_ALIAS_HASH}, mysql:/etc/postfix/mysql_virtual_forwards.cf
 /etc/postfix/mysql_virtual_domains.cf
@@ Line 82: / Line 103: @@
 <code>
 driver = mysql
-connect = host=localhost dbname=ispcp user=ispcp_dovecot password=PASS_MAILRW
+connect = host=localhost dbname=imscp user=imscp_dovecot password=PASS_MAILRW
 user_query = SELECT CONCAT('/var/mail/virtual/', subdomain.subdomain_name, ".", domain.domain_name, '/',mail_acc) AS home, '1001' AS uid, '8' AS gid FROM (mail_users INNER JOIN subdomain ON mail_users.sub_id = subdomain.subdomain_id) INNER JOIN domain ON mail_users.domain_id = domain.domain_id WHERE mail_acc='%n' and concat(subdomain.subdomain_name,".",domain.domain_name)='%d';
 </code>
@@ Line 93: / Line 114: @@
 <code>
 driver = mysql
-connect = host=localhost dbname=ispcp user=ispcp_dovecot password=PASS_MAILRW
+connect = host=localhost dbname=imscp user=imscp_dovecot password=PASS_MAILRW
 user_query = SELECT concat('/var/mail/virtual/', domain_aliasses.alias_name, '/',mail_acc) as home, '1001' as uid, '8' as gid FROM (mail_users INNER JOIN domain_aliasses ON mail_users.sub_id = domain_aliasses.alias_id) INNER JOIN domain ON mail_users.domain_id = domain.domain_id WHERE mail_acc='%n' and domain_aliasses.alias_name ='%d';
 </code>
@@ Line 104: / Line 125: @@
     args = /etc/dovecot/dovecot-sql-aliasdomain.conf
   }
-==== Automatically alert user if his quota exceeds a critical limit ====
-You can configure Dovecot to execute an external command if an user's quota exceeds a specified limit. In this example the user receives alert emails if his quota exceeds 80% / 95% percent.
-Append the following in your plugin section in **/etc/dovecot/dovecot.conf**:
-  quota_warning = storage=95%% /usr/local/bin/dovecot-quota-warning.sh 95
-  quota_warning2 = storage=80%% /usr/local/bin/dovecot-quota-warning.sh 80
-If the user's quota reaches the limit the external script dovecot-quota-warning.sh is run. If you define quota warnings make sure that you start with the highest limit because Dovecot only runs the command for the first limit that is exceeded.
-create **/usr/local/bin/dovecot-quota-warning.sh**
-Give appropiate permissions to the file
-  chmod 755 /usr/local/bin/dovecot-quota-warning.sh
-<code>
-#!/bin/sh
-PERCENT=$1
-cat << EOF | /usr/lib/dovecot/deliver -d $USER -c /etc/dovecot/dovecot-no-quota-warning.conf
-From: [email protected]
-To: $USER
-Subject: quota warning
-Content-Type: text/plain; charset="UTF-8"
-Attention! The emails in your mailbox are using more than $PERCENT% of your total mail space.
-EOF
-</code>
-Create **/etc/dovecot/dovecot-no-quota-warning.conf** \\
-This is basically the same file as dovecot.conf but the quota rules are stripped out in order to avoid looping. You can strip the quota lines manually or let it grep do for you:
-  grep -v "quota" dovecot.conf > dovecot-no-quota-warning.conf
-At last set correct permissions to dovecot-no-quota-warning.conf
-  chmod 0644 /etc/dovecot/dovecot-no-quota-warning.conf
-For more information about this have a look at http://wiki.dovecot.org/Quota/1.1
 ===== Frequent issues =====
@@ Line 164: / Line 150: @@
 **NOTE:** In the SQL query for user_query there are uids and gids 'hardcoded'. The uid must be the uid of your vmail user and gid the gid of the mail group. Maybe you have to change the defaults (1001/8))

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