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Thread: Most of our sent mails are marked as SPAM or goes to junk folder.

  1. #1
    Cubbis is offline Beginner Member
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    Default Most of our sent mails are marked as SPAM or goes to junk folder.

    Hello

    I am new to zimbra. Users at our domain.com complain that when they send mails to people it is either returned and marked as spam or it ends up in the recipients junk folder. Here is a recent report of Undelivered mail. (actual names of sender and recipient have been changed to protect identity)

    The mail system

    <recipeint@recipeintdomain.com>: host mail.recipientdomain.com[65.170.41.242] said: 554
    Transaction Failed Spam Message not queued. (in reply to end of DATA
    command)
    Reporting-MTA: dns; mail.ourdomain.com X-Postfix-Queue-ID: 6E1938760F99 X-Postfix-Sender: rfc822; sender@ourdomain.com Arrival-Date: Thu, 6 Sep 2012 07:29:34 -0500 (CDT) Final-Recipient: rfc822; recipient@recipeintdomain.com Original-Recipient: rfc822;recipient@recipeintdomain.com Action: failed Status: 5.0.0 Remote-MTA: dns; mail.recipeintdomain.com Diagnostic-Code: smtp; 554 Transaction Failed Spam Message not queued.


    Some of the mails we send, this is the report that is returned.

    Please, does anyone has any idea as to what the problem is and how we can bypass this problem of our mails being marked as spam.

    Thank you

  2. #2
    phoenix is offline Zimbra Consultant & Moderator
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    Default

    Quote Originally Posted by Cubbis View Post
    Please, does anyone has any idea as to what the problem is and how we can bypass this problem of our mails being marked as spam.
    How can we tell from that information what the problem is? You'll have to do some investigation on why your mail server appears to be on a blacklist and ask the administrators of the receiving server why they are rejecting your mail.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  3. #3
    GVR
    GVR is offline Junior Member
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    Quote Originally Posted by phoenix View Post
    How can we tell from that information what the problem is? You'll have to do some investigation on why your mail server appears to be on a blacklist and ask the administrators of the receiving server why they are rejecting your mail.

    Hello,

    we seem to be having the same issue, however it is also happening with internal users emailing each other, we have put some of the "offending" email addresses on a whitelist in Zimbra but it still seems to be happening.

    regards,

  4. #4
    tpouzet is offline Junior Member
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    Hi,

    Maybe you could watch the headers of the email marked as SPAM, you can find there some hints :
    Code:
    X-Spam-Flag: YES
    X-Spam-Score: 7.312
    X-Spam-Level: *******
    X-Spam-Status: Yes, score=7.312 tagged_above=-10 required=6.6
    	tests=[BAYES_60=1.5, DOS_OUTLOOK_TO_MX=2.845,
    	FSL_HELO_NON_FQDN_1=0.001, HELO_NO_DOMAIN=0.001, RDNS_NONE=0.793,
    	TVD_RCVD_SINGLE=2.172] autolearn=no
    You should make sure that you have configured your local networks in /opt/zimbra/conf/spamassassin/local.cf (attribute "trusted_networks 192.168.0. ")

  5. #5
    xuyanru's Avatar
    xuyanru is offline Active Member
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    Quote Originally Posted by tpouzet View Post
    Hi,

    Maybe you could watch the headers of the email marked as SPAM, you can find there some hints :
    Code:
    X-Spam-Flag: YES
    X-Spam-Score: 7.312
    X-Spam-Level: *******
    X-Spam-Status: Yes, score=7.312 tagged_above=-10 required=6.6	tests=[BAYES_60=1.5, DOS_OUTLOOK_TO_MX=2.845,
    	FSL_HELO_NON_FQDN_1=0.001, HELO_NO_DOMAIN=0.001, RDNS_NONE=0.793,
    	TVD_RCVD_SINGLE=2.172] autolearn=no
    You should make sure that you have configured your local networks in /opt/zimbra/conf/spamassassin/local.cf (attribute "trusted_networks 192.168.0. ")
    You should change the percent of the AV/AS in "Configuration—>Global—>AS/AV—>Kill percent and Tag percent"
    Default they are 75 and 33, you can increase them according to the behavior of your mail system.

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