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我用 Spamassassin 设置 Postfix，用 Sieve 设置 Dovecot。Spamassassin 会将电子邮件标记为垃圾邮件。

我试图让 Sieve 将被 SpamAssassin 标记为“垃圾邮件”的邮件移动到垃圾文件夹中。但是，它没有这样做。我不知道我做错了什么并且很沮丧。

这是我的 dovecot.conf 转储：

$ dovecot -n
# 2.2.9: /etc/dovecot/dovecot.conf
# OS: Linux 3.13.0-37-generic x86_64 Linux Mint 17.1 Rebecca ext4
info_log_path = /var/log/dovecot-info.log
log_path = /var/log/dovecot.log
mail_location = maildir:/var/mail/vmail/%u
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave
namespace {
  inbox = yes
  location = 
  mailbox Drafts {
    auto = subscribe
    special_use = \Drafts
  }
  mailbox Junk {
    auto = subscribe
    special_use = \Junk
  }
  mailbox Sent {
    auto = subscribe
    special_use = \Sent
  }
  mailbox Trash {
    auto = subscribe
    special_use = \Trash
  }
  prefix = 
  separator = /
  type = private
}
passdb {
  args = scheme=plain /etc/dovecot/passwd
  driver = passwd-file
}
plugin {
  sieve = ~/.dovecot.sieve
  sieve_before = /etc/dovecot/sieve/sieve.default
  sieve_default = /etc/dovecot/sieve/sieve.default
  sieve_dir = ~/sieve
  sieve_global_dir = /var/lib/dovecot/sieve/
}
protocols = imap lmtp sieve
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    user = postfix
  }
}
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }
  inet_listener sieve_deprecated {
    port = 2000
  }
  process_min_avail = 0
  service_count = 1
  vsz_limit = 64 M
}
service managesieve {
  process_limit = 1024
}
ssl_cert = </etc/ssl/certs/ssl-cert-snakeoil.pem
ssl_key = </etc/ssl/private/ssl-cert-snakeoil.key
userdb {
  args = uid=vmail gid=vmail home=/home/vmail/%u
  driver = static
}
protocol lda {
  mail_plugins = " sieve"
}
protocol lmtp {
  mail_plugins = " sieve"
}
protocol sieve {
  mail_max_userip_connections = 10
  mail_plugins = 
  managesieve_implementation_string = Dovecot Pigeonhole
  managesieve_logout_format = bytes=%i/%o
  managesieve_max_compile_errors = 5
  managesieve_max_line_length = 65536
  managesieve_notify_capability = 
  managesieve_sieve_capability = 
}

我的 /etc/dovecot/sieve/sieve.default 如下：

$ cat /etc/dovecot/sieve/sieve.default
require "fileinto";
if header :contains "X-Spam-Flag" "YES" {
    fileinto "Junk";
}

“垃圾”文件夹存在。这是电子邮件的转储：

From user@domain.tld Mon May 11 14:37:44 2015
Return-Path: <user@domain.tld>
X-Original-To: user@testmail.domain.tld
Delivered-To: user@testmail.domain.tld
Received: by Linux-Mint (Postfix, from userid 5001)
    id A59ECE34D1; Mon, 11 May 2015 14:37:44 -0400 (EDT)
Received: from localhost by Linux-Mint
    with SpamAssassin (version 3.4.0);
    Mon, 11 May 2015 14:37:44 -0400
From: User <user@domain.tld>
To: user@testmail.domain.tld
Subject: *****SPAM***** This is Junk Mail
Date: Mon, 11 May 2015 14:37:38 -0400
Message-Id: <20150511183738.GD7930@user-pc>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on Linux-Mint
X-Spam-Flag: YES
X-Spam-Level: **************************************************
X-Spam-Status: Yes, score=1000.0 required=5.0 tests=GTUBE autolearn=no
    autolearn_force=no version=3.4.0
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="----------=_5550F6F8.2DF3E67D"
Status: RO
Content-Length: 1867
Lines: 52

This is a multi-part message in MIME format.

------------=_5550F6F8.2DF3E67D
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: 8bit

Spam detection software, running on the system "Linux-Mint",
has identified this incoming email as possible spam.  The original
message has been attached to this so you can view it or label
similar future email.  If you have any questions, see
@@CONTACT_ADDRESS@@ for details.

Content preview:  GTUBE string: XJS*C4JDBQADN1.NSBN3*2IDNEN*GTUBE-STANDARD-ANTI-UBE-TEST-EMAIL*C.34X
   [...] 

Content analysis details:   (1000.0 points, 5.0 required)

 pts rule name              description
---- ---------------------- --------------------------------------------------
1000 GTUBE                  BODY: Generic Test for Unsolicited Bulk Email



------------=_5550F6F8.2DF3E67D
Content-Type: message/rfc822; x-spam-type=original
Content-Description: original message before SpamAssassin
Content-Disposition: inline
Content-Transfer-Encoding: 8bit

Received: from domain.tld (my-hostname.domain.tld [IPv6:REMOVED])
    by Linux-Mint (Postfix) with ESMTPS id 0A6A2E34BF
    for <user@testmail.domain.tld>; Mon, 11 May 2015 14:37:40 -0400 (EDT)
Received: from user-pc (unknown [IPv6:2001:470:8:209::c0ff:ee])
    by domain.tld (Postfix) with ESMTPSA id 03FD41028E
    for <user@testmail.domain.tld>; Mon, 11 May 2015 18:37:40 +0000 (UTC)
Date: Mon, 11 May 2015 14:37:38 -0400
From: User <user@domain.tld>
To: user@testmail.domain.tld
Subject: This is Junk Mail
Message-ID: <20150511183738.GD7930@user-pc>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.5.21 (2010-09-15)

GTUBE string:
XJS*C4JDBQADN1.NSBN3*2IDNEN*GTUBE-STANDARD-ANTI-UBE-TEST-EMAIL*C.34X


------------=_5550F6F8.2DF3E67D--

我正在测试从一台服务器到另一台服务器的这封电子邮件，发件人和收件人不是同一台机器。收件人是 user@testmail.domain.tld，发件人是 user@domain.tld。该电子邮件被明确标记为垃圾邮件。

为什么不将电子邮件移动到垃圾文件夹？

4

1 回答 1

3

Figured it out. As I am still a noob, my answer may not be the best, but I hope it helps someone out there.

This had a few problems, but primarily postfix was not routing mail to dovecot for delivery. Dovecot+sieve were totally bypassed.

To fix this, I had to have Postfix and Dovecot communicate over lmtp. First, I setup dovecot:

  protocol lda {
            mail_plugins = $mail_plugins sieve
    }

  protocol lmtp {
        mail_plugins = $mail_plugins sieve
  }

service lmtp {
   inet_listener lmtp {
    address = 127.0.0.1 ::1
    port = 10025
   }
}

Then I had to tell postfix to talk to dovecot. I did this by doing:

virtual_transport = lmtp:[::1]:10025

Then back to dovecot, I had to properly configure sieve.

plugin {
        sieve = ~/.dovecot.sieve
        sieve_dir = ~/sieve
        sieve_before = /etc/dovecot/sieve/sieve.default
        sieve_default = /etc/dovecot/sieve/sieve.default
        sieve_global_dir = /var/lib/dovecot/sieve/
}
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }

  service_count = 1

  process_min_avail = 0

  vsz_limit = 64M
}

service managesieve {
   process_limit = 1024
}

protocol sieve {
  managesieve_max_line_length = 65536

  mail_max_userip_connections = 10

  # Space separated list of plugins to load (none known to be useful so far).
  # Do NOT try to load IMAP plugins here.
  mail_plugins =

  managesieve_logout_format = bytes=%i/%o

  managesieve_implementation_string = Dovecot Pigeonhole

  managesieve_sieve_capability =
  managesieve_notify_capability =

  managesieve_max_compile_errors = 5

}

From here I put in the standard spamassassin filter rules in /etc/dovecot/sieve/sieve.default, which in my case was:

require "fileinto";
if header :contains "X-Spam-Flag" "YES" {
  fileinto "Junk";
}

After that, I ran:

sievec /etc/dovecot/sieve/sieve.default

This "compiled" the sieve rules. And finally, I restarted dovecot and postfix.

sudo service dovecot restart
sudo service postfix restart

Upon that, I sent myself a test spam and it was redirected to the spam folder. I hope this helps and I ask that you pardon and correct any mistakes I may have made.

于 2015-05-13T03:56:06.917 回答