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Thread: Gmail Mark Spam

  1. #1
    Join Date
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    Default Gmail Mark Spam

    Hi,

    have a problem with mail outgoing from my Zimbra server to Gmail, it mark spam my mail.

    In order i search on forum a workaround for this problem, i find more post, but i don't have resolve my problem.
    This is my situation in specify (domain.it is an example) :

    Code:
    zmcontrol -v
    
    Release 6.0.10_GA_2692.RHEL5_64_20101215170845 CentOS5_64 FOSS edition.
    Hostname (ok)
    Code:
    hostname -f
    mail.domain.it
    Hosts
    Code:
    127.0.0.1		localhost.localdomain localhost
    ::1		localhost6.localdomain6 localhost6
    192.168.xxx.xxx mail.domain.it mail
    Revers Dns (ok) My Server is behind NAT
    Code:
    dig -x 79.39.xxx.xxx
    ;; ANSWER SECTION:
    96.106.xx.xx.in-addr.arpa. 86400 IN	PTR	mail.domain.it.
    In main.cf ther is
    Code:
    header_checks = pcre:/opt/zimbra/conf/postfix_header_checks
    postfix_masquerade_domains = mail.domain.it
    /opt/zimbra/conf/postfix_header_checks.in
    Code:
    %%uncomment VAR:zimbraMtaBlockedExtension%%/filename=\"?(.*)\.(%%list VAR:zimbraMtaBlockedExtension |%%)\"?$/
    %%uncomment VAR:zimbraMtaBlockedExtension%%	REJECT For security reasons we reject attachments of this type
    %%uncomment VAR:zimbraMtaBlockedExtension%%/^\s*Content-(Disposition|Type).*name\s*=\s*"?(.+\.(%%list VAR:zimbraMtaBlockedExtension |%%))"?\s*$/
    %%uncomment VAR:zimbraMtaBlockedExtension%%	REJECT Attachment type not allowed. File "$2" has the unacceptable extension "$3"
    /^Received: from .+\..+\.domain\.it .+(by mail\.domain\.it .+) / REPLACE Received: $1
    Header of mail in incoming from Zimbra to Gmail
    Code:
    Delivered-To: mail@gmail.com
    Received: by 10.223.164.75 with SMTP id d11cs257582fay;
            Mon, 21 Feb 2011 06:21:45 -0800 (PST)
    Received: by 10.227.132.69 with SMTP id a5mr1218011wbt.123.1298297613961;
            Mon, 21 Feb 2011 06:13:33 -0800 (PST)
    Return-Path: <xxxx@domain.it>
    Received: from mail.domain.it (mail.domain.it [79.39.xx.xx])
            by mx.google.com with ESMTP id y20si7654988wbh.78.2011.02.21.06.13.32;
            Mon, 21 Feb 2011 06:13:32 -0800 (PST)
    Received-SPF: pass (google.com: domain of xxxx@domain.it designates 79.39.xx.xx as permitted sender) client-ip=79.39.xx.xx;
    Authentication-Results: mx.google.com; spf=pass (google.com: domain of xxxx@domain.it designates 79.39.xx.xx as permitted sender) smtp.mail=xxxx@domain.it
    Received: from localhost (localhost.localdomain [127.0.0.1])
            by mail.domain.it (Postfix) with ESMTP id 6A3BA13E403A
            for <mail@gmail.com>; Mon, 21 Feb 2011 15:13:31 +0100 (CET)
    X-Virus-Scanned: amavisd-new at domain.it
    Received: from mail.domain.it ([127.0.0.1])
            by localhost (mail.domain.it [127.0.0.1]) (amavisd-new, port 10024)
            with ESMTP id 6dFzGT3Z+Ib4 for <mail@gmail.com>;
            Mon, 21 Feb 2011 15:13:31 +0100 (CET)
    Received: by mail.domain.it (Postfix) with ESMTP id 1206613E4039
            for <mail@gmail.com>; Mon, 21 Feb 2011 15:13:31 +0100
    Date: Mon, 21 Feb 2011 15:13:30 +0100 (CET)
    From: xxxx <xxxx@domain.it>
    To: mail@gmail.com
    Message-ID: <786904912.2.1298297610956.JavaMail.root@mail.domain.it>
    Subject: test3
    MIME-Version: 1.0
    Content-Type: text/plain; charset=utf-8
    Content-Transfer-Encoding: 7bit
    X-Mailer: Zimbra 6.0.10_GA_2692 (ZimbraWebClient - SAF3 (Linux)/6.0.10_GA_2692)
    test3
    If i send the same mail from Zimbra domain.it to another Server Zimbra i recived:
    Code:
    X-Spam-Flag: NO
    X-Spam-Score: -1.911
    X-Spam-Level: 
    X-Spam-Status: No, score=-1.911 tagged_above=-10 required=6.6
    	tests=[BAYES_00=-1.9, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01]
    	autolearn=ham
    My pubblic Ip isn't listen in any blacklist i use this website for query to BL MX Lookup Tool - Check your DNS MX Records online - MxToolbox

    So, now i have no idea for a workaround.
    There is no one wants to help me ?

    Thanks a lot
    Last edited by scorpionibm; 02-21-2011 at 07:36 AM.

  2. #2
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    Default

    maybe try something like this?

    Email Server Test All About SPAM

  3. #3
    Join Date
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    Location
    Milan (Italy)
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    Default

    maybe try something like this?

    Email Server Test All About SPAM
    Thanks for reply, very interested link.

    I found a problem, report from "allaboutspam":
    my email scored <5.5> whereas an ideal score will be less than <5>.

    Code:
    Your Email was classified as SPAM as it failed the following tests
    BAYES_00
    LOCALPART_IN_SUBJECT
    RATWARE_RCVD_PF
    SPF_PASS
    TVD_SPACE_RATIO
    This is very strage, now i perform a send test to a mailserver with Postfix and SpamAss. (No Zimbra), for read the header and see the score of spamassassin.

    But the question is: "Why with an external server whit Zimbra my score is -1.9 ?" (frist post).

    I don't understand...
    After test i post the result.

  4. #4
    Join Date
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    Milan (Italy)
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    Default

    I perform a test to a server with Postfix, Amavis and Spamassasin and my mail is not
    mark as spam.

    I found another website for testing a mail from and my score is 0.3 .
    I'm very confused. (flashmarketing spamassassin)

    From allaboutspam the next problem report (not critical (yellow color) is:

    Code:
    Email does not contain any DKIM/Domain Keys Signature and the published Domain Keys policy does not specify whether to accept or reject unsigned Emails. Signing your Outbound emails and clearly specifying a policy to accept signed emails will minimize chances of your Email being considered as SPAM.
    and
    Code:
    Email server is not using BATV format while sending out emails. BATV is recommended to ensure that your users do not become a victim of bounce floods.
    The last change on my configuration is for amavis.conf.in
    Code:
    $sa_tag_level_deflt  = 3.0;  # add spam info headers if at, or above that level
    This beacause i don't want a header check spam for Clean messages.

    But the problem is still present, with Gmail and Hotmail.

    There are some people who have an idea ? Thanks
    Last edited by scorpionibm; 02-21-2011 at 03:50 PM.

  5. #5
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    Unhappy

    i have no idea,
    i'm alone with this problem ? really ?

  6. #6
    Join Date
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    Default

    I removed from header in outgoing (trought postfix_header_check)

    this:
    Code:
    X-Mailer: Zimbra 6.0.10_GA_2692 (ZimbraWebClient - SAF3 (Linux)/6.0.10_GA_2692)
    But the problem of spam still continue.

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