Managesieve Plugin

1. 確認 devocot 的 lda 協定啟動，加入 sieve 語法。

   [root@mail ~]# vim /etc/dovecot/conf.d/15-lda.conf
   [root@mail ~]# grep '^protocol lda' -A5  /etc/dovecot/conf.d/15-lda.conf | grep -v \#
   protocol lda {
     mail_plugins = $mail_plugins sieve
   }
   

2. 確認 postfix 將郵件傳送到 dovecot。

   [root@mail ~]# vim /etc/postfix/main.cf
   [root@mail ~]# grep ^mailbox_command /etc/postfix/main.cf
   mailbox_command = /usr/libexec/dovecot/deliver
   

3. 安裝 sieve 套件。

   [root@mail ~]# yum install dovecot-pigeonhole
   

4. 設定 sieve。

   [root@mail ~]# vim /etc/dovecot/conf.d/90-plugin.conf 
   [root@mail ~]# grep ^plugin -A8 /etc/dovecot/conf.d/90-plugin.conf 
   plugin {
     #setting_name = value
     sieve=~/.dovecot.sieve
     sieve_dir = ~/sieve
     sieve_global_dir = /home/sieve
     sieve_max_script_size = 1M
   }
   

5. dovecot 協定加入 sieve。

   [root@mail ~]# grep ^protocol /etc/dovecot/dovecot.conf 
   protocols = imap pop3 lmtp sieve
   

6. managesieve-login 服務的 port 4190。

   [root@mail ~]# vim /etc/dovecot/conf.d/20-managesieve.conf 
   [root@mail ~]# grep managesieve-login -A4 /etc/dovecot/conf.d/20-managesieve.conf 
   service managesieve-login {
     inet_listener sieve {
       port = 4190
     }
   

7. 重新啟動 dovecot。

   [root@mail ~]# /etc/init.d/dovecot restart
   

8. 出現以下訊息

   Unable to connect to managesieve on localhost:4190
   

9. 使用自訂 selinux 政策的方法找到 selinux 管制項目，將其開啟後正常。

   [root@mail plugins]# getsebool -a | grep httpd_can_network_connect
   httpd_can_network_connect --> off
   httpd_can_network_connect_cobbler --> off
   httpd_can_network_connect_db --> off
   [root@mail plugins]# setsebool -P httpd_can_network_connect on
   

10. 轉信不成功，查 log 如下，再查前後訊息得知要轉入的目錄檔案過大，修正後正常。

    Jun  3 09:11:39 localhost dovecot: lda(dywang): Error: sieve: execution of script \
    ~/.dovecot.sieve failed, but implicit keep was successful \
    (user logfile ~/.dovecot.sieve.log may reveal additional details)