postfix 2.11 是否需要为每个用户或域安装 VDA 补丁配额支持,当 dovecot 2.2.x 用作 imap 服务器时?我使用的是 ubuntu 14.04 LTS 和 postfixadmin 2.3。我很感激任何有用的工作指南。谢谢
dovecot-n 输出
主配置文件
cat dovecot-sql.conf.ext
驱动程序 = mysql 连接 = 主机 = 127.0.0.1 dbname = postfixadmin 用户 = postfixadmin 密码 = XXXXXXXX default_pass_scheme = MD5-CRYPT
password_query = SELECT 用户名作为用户,密码 FROM mailbox WHERE username='%u'; user_query = SELECT maildir AS home,5000 AS uid,5000 AS gid,CONCAT("*:bytes=",quota) AS quote_rule FROM mailbox WHERE username = '%n@%d' AND active=1;
答案1
如果postfix
不尝试执行 LDA 本身而是调用 dovecot deliver
,那么postfix
根本不需要了解配额。
如果您已经使用过postfixadmin
虚拟域管理,那么您已经拥有了配额限制所需的一切。您必须修改的dovecot
SQL 查询以获取用户的配额:
user_query = SELECT maildir AS home, \
26 AS uid, \
26 AS gid, \
CONCAT("*:bytes=",quota) AS quota_rule \
FROM mailbox \
WHERE username = '%n@%d' \
AND active=1;
(不要盲目复制粘贴该示例,请将其用作模板)
然后你必须在dovecot.conf
更新:
. . . . . .
# this line enable quota plugin!
mail_plugins = quota
# here is the plugin's configuration
plugin {
quota = maildir:User quota
quota_rule = Junk:ignore
quota_rule2 = Trash:storage=+100M
quota_warning = storage=90%% quota-warning 90 %u %d
quota_warning2 = storage=80%% quota-warning 80 %u %d
quota_exceeded_message = ERROR:422 - Mailbox full, sorry.
. . . . .
}
. . . . .
service quota-warning {
executable = script /path/to/the/overquota.sh
user = $mail_uid
group = $mail_gid
unix_listener quota-warning {
user = $mail_uid
group = $mail_gid
}
}
. . . . .
overquota.sh
看起来应该是这样的:
#!/bin/sh
cat << EOT | /usr/local/libexec/dovecot/dovecot-lda -d $2 -o "plugin/quota=maildir:User quota:noenforcing"
From: postmaster@$3
To: $2
Subject: == Quota warning ==
Content-Type: text/plain; charset="UTF-8"
Your mailbox is $1% full, so clean up your mess, please!
EOT
exit 0
####
当 dovecotdeliver
尝试将消息存储到收件箱时,它会检查配额是否已达到预定义阈值 80% 和 90%。如果已达到,则会调用配额警告服务并启动脚本,将警告消息放入邮箱,而无需进一步检查配额。