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Postfix 上的 Sieve Filter 有问题吗？

tag-icon • tag-icon postfix dovecot sieve
Postfix 上的 Sieve Filter 有问题吗？

我想知道是否有人可以解释一下我遇到的问题，目前我有一个简单的 postfix 服务器，前面有一个 PMG 网关。由于 PMG 网关有垃圾邮件过滤器，我需要将垃圾邮件重定向到用户的垃圾邮件文件夹。我已经完成了这个 zimbra，但在 postfix 上我觉得我遗漏了一些东西。这些是我采取的步骤

  1. 安装包并修改在 main.cf 底部添加以下内容
sudo apt-get install dovecot-sieve dovecot-managesieved



mailbox_command=/usr/lib/dovecot/deliver

  1. 然后编辑

    /etc/dovecot/conf.d/90-sieve.conf

并添加此行来配置默认位置

sieve_default = /etc/dovecot/default.sieve

然后让 dovecot 用户读取文件

chgrp dovecot /etc/dovecot/conf.d/90-sieve.conf

  1. 进入 lda 插件并取消注释

    /etc/dovecot/conf.d/15-lda.conf
mail_plugins = sieve

  2. 创建文件筛选并编译

         root@mail:/etc/dovecot# cat /etc/dovecot/default.sieve
      require "fileinto";
      #Filter email based on a subject
      if header :contains "X-Spam-Flag" "YES" {
      fileinto "Junk";
     }

然后

cd /etc/dovecot

sievec default.sieve

并赋予 dovecot 权限

chgrp dovecot /etc/dovecot/default.svbin
  1. 重启 postfix 和 dovecot

我发送了一封测试垃圾邮件[电子邮件保护]

并且它将 xspam 标志标记为是，但它仍然进入收件箱而不是垃圾邮件文件夹

我检查了协议

root@mail:/etc/dovecot# doveconf | grep protocols
protocols = " imap sieve pop3"
ssl_protocols = !SSLv2 !SSLv3

Return-Path: <[email protected]>
X-Original-To: [email protected]
Delivered-To: [email protected]
Received: from mail.mydomain.com (unknown [192.168.1.248])
    (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))
    (No client certificate requested)
    by mail.mydomain.com (Postfix) with ESMTPS id CB3162033C
    for <[email protected]>; Sun, 25 Jul 2021 10:54:03 -0500 (COT)
Received: from mail.mydomain.com (localhost.localdomain [127.0.0.1])
    by mail.mydomain.com (Proxmox) with ESMTP id 3DC215C2F3E
    for <[email protected]>; Sun, 25 Jul 2021 10:48:19 -0500 (-05)
Received-SPF: softfail (gmail.com ... _spf.google.com: Sender is not authorized by default to use '[email protected]' in 'mfrom' identity, however domain is not currently prepared for false failures (mechanism '~all' matched)) receiver=mail.mydomain.com; identity=mailfrom; envelope-from="[email protected]"; helo=emkei.cz; client-ip=101.99.94.155
Authentication-Results: mail.mydomain.com; dmarc=fail (p=none dis=none) header.from=gmail.com
Authentication-Results: mail.mydomain.com; dkim=none; dkim-atps=neutral
Received: from emkei.cz (emkei.cz [101.99.94.155])
    (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))
    (No client certificate requested)
    by mail.mydomain.com (Proxmox) with ESMTPS id 6003D5C0F66
    for <[email protected]>; Sun, 25 Jul 2021 10:48:16 -0500 (-05)
Received: by emkei.cz (Postfix, from userid 33)
    id B52D62413E; Sun, 25 Jul 2021 17:48:13 +0200 (CEST)
To: [email protected]
subject: SPAM: test
From: "test" <[email protected]>
X-Priority: 3 (Normal)
Importance: Normal
Errors-To: [email protected]
Reply-To: [email protected]
Content-Type: text/plain; charset=utf-8
Message-Id: <[email protected]>
Date: Sun, 25 Jul 2021 17:48:13 +0200 (CEST)
X-SPAM-LEVEL: Spam detection results:  6
    BAYES_50                  0.8 Bayes spam probability is 40 to 60%
    DKIM_ADSP_CUSTOM_MED    0.001 No valid author signature, adsp_override is CUSTOM_MED
    FORGED_GMAIL_RCVD           1 'From' gmail.com does not match 'Received' headers
    FREEMAIL_FROM           0.001 Sender email is commonly abused enduser mail provider (vhfgyut[at]hotmail.com) (test[at]gmail.com) (test[at]gmail.com) (test[at]gmail.com) (test[at]gmail.com) (test[at]gmail.com)
    NML_ADSP_CUSTOM_MED       0.9 ADSP custom_med hit, and not from a mailing list
    SPF_HELO_PASS          -0.001 SPF: HELO matches SPF record
    SPF_SOFTFAIL            0.665 SPF: sender does not match SPF record (softfail)
    SPOOFED_FREEMAIL        1.224 -
    SPOOF_GMAIL_MID         1.498 From Gmail but it doesn't seem to be...
X-Spam-Flag: Yes

test

答案1

检查 Dovecot 配置sieve_default=以确认您已配置默认筛选脚本的预期路径。

# doveconf | grep sieve_default
 sieve_default = /var/lib/dovecot/sieve/default.sieve

此外，筛选过滤器评估不会在所有操作上停止。将项目归档到多个文件夹中是完全有效的。如果您希望将邮件放在一个文件夹中，并且只放在该文件夹中，请在块stop末尾添加一个命令{}

# cat /etc/dovecot/default.sieve
require "fileinto";
# filter email based on a header added by proxmox mail gateway
if header :contains "X-Spam-Flag" "YES" {
   fileinto "Junk";
   stop;
}

经过默认到达筛选脚本的末尾，执行隐式keep动作stop，这样即使没有明确说明，每个未结束的调用（在诸如的操作中）也将被保留。

答案2

非常感谢您的回复，我必须将默认位置更改为此，然后就可以了，谢谢

##
## Settings for the Sieve interpreter
##

# Do not forget to enable the Sieve plugin in 15-lda.conf and 20-lmtp.conf
# by adding it to the respective mail_plugins= settings.

plugin {
  # The path to the user's main active script. If ManageSieve is used, this the
  # location of the symbolic link controlled by ManageSieve.
 # sieve = ~/.dovecot.sieve

  # The default Sieve script when the user has none. This is a path to a global
  # sieve script file, which gets executed ONLY if user's private Sieve script
  # doesn't exist. Be sure to pre-compile this script manually using the sievec
  # command line tool.
  # --> See sieve_before fore executing scripts before the user's personal
  #     script.
  #sieve_default = /var/lib/dovecot/sieve/default.sieve
 sieve_default = /etc/dovecot/default.sieve

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