start:howto:dovecot_plus_database_quota
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start:howto:dovecot_plus_database_quota [2012/01/10 08:46] aseques |
start:howto:dovecot_plus_database_quota [2012/08/23 08:29] aseques |
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| - | **__ALERT: This document is currently being rewritten, only experienced people should use this__** | ||
| - | |||
| ===== Dovecot 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) | This is an improved version from the original article in ispcp (http://isp-control.net/documentation/howto:mail:replace_courier_with_dovecot) | ||
| Line 8: | Line 6: | ||
| ===== Changes from standard dovecot in imscp ===== | ===== Changes from standard dovecot in imscp ===== | ||
| * Alias and subdomains can be used as a full mail domains | * Alias and subdomains can be used as a full mail domains | ||
| - | * Warning users that are overquota | + | * Global sieve filtering |
| ===== Reasons to use dovecot ===== | ===== Reasons to use dovecot ===== | ||
| Line 18: | Line 16: | ||
| * You can block users after they are exceeding their quotas. | * You can block users after they are exceeding their quotas. | ||
| * Dovecot is really fast and reliable | * Dovecot is really fast and reliable | ||
| + | * Warning users that are overquota | ||
| Please report any bugs/hints/whatever in the following board thread: | Please report any bugs/hints/whatever in the following board thread: | ||
| Line 32: | Line 31: | ||
| ===== Optional features ===== | ===== Optional features ===== | ||
| - | ==== Sieve filtering ==== | + | ==== Global sieve filtering ==== |
| There is the global script located in /etc/dovecot/sieve/dovecot.sieve, it can be edited to suit your needs with more functionality. | 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. | + | In the default install it moves all the mails tagged as spam to the Junk folder of the mail user, if for some reason you don't have that script created, the content should be this one: |
| + | |||
| + | <code>require "fileinto"; | ||
| + | if exists "X-Spam-Flag" { | ||
| + | if header :contains "X-Spam-Flag" "YES" { | ||
| + | fileinto "INBOX.Junk"; | ||
| + | stop; | ||
| + | } | ||
| + | }</code> | ||
| + | |||
| + | |||
| More info about sieve syntax and usage: http://wiki.dovecot.org/LDA/Sieve | More info about sieve syntax and usage: http://wiki.dovecot.org/LDA/Sieve | ||
| Line 82: | Line 92: | ||
| <code> | <code> | ||
| driver = mysql | 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'; | 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> | </code> | ||
| Line 93: | Line 103: | ||
| <code> | <code> | ||
| driver = mysql | 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'; | 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> | </code> | ||
| Line 104: | Line 114: | ||
| args = /etc/dovecot/dovecot-sql-aliasdomain.conf | 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 ===== | ===== Frequent issues ===== | ||
| Line 164: | Line 139: | ||
| **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)) | **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)) | ||
| - | |||
/var/www/virtual/i-mscp.net/wiki/htdocs/data/pages/start/howto/dovecot_plus_database_quota.txt · Last modified: 2013/06/21 07:36 by aseques
