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Thread: [SOLVED] Spamming ....

  1. #1
    Wilson_Lee is offline Active Member
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    Default [SOLVED] Spamming ....

    Hi,

    Recently, I receive a lot of spam mails and those spam mail sender is from our local distribution list.

    Is there anything i can do ? I have forward as attachment all the spam mails to Zimbra Spam training account ....It does not help much and we still receive a lot spam mail in our junk mail folder.

  2. #2
    uxbod's Avatar
    uxbod is offline Moderator
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    http://wiki.zimbra.com/index.php?tit...tfixRecipients so that you can stop external email hitting your internal distribution list.

  3. #3
    Wilson_Lee is offline Active Member
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    is it mean my server is setup as open relay ?I'm using zimbra version 5. How can I trace whether the spamming is from local zombie machine or from outside?

    I have read the document.It says that this method can be spoofed by forging the mail from: header (so mail appears to original from within the domain), so it isnt foolproof, but it works for basic needs.

    May I know is it workable for me?

    My situation is as below:

    all the spam mail reaches our users mailbox by using our local distribution list as sender and recipients.

    like sender: all@mydomains.com recipients:all@mydomains.com
    Last edited by Wilson_Lee; 05-25-2009 at 07:05 PM. Reason: Add in more information.

  4. #4
    phoenix is offline Zimbra Consultant & Moderator
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    Use the details in the link you've been given to restrict who can send to your distribution list.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  5. #5
    Wilson_Lee is offline Active Member
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    I have run the update and have error as below:

    [root@zimbra conf]# /opt/zimbra/postfix/conf/update_protected_recipients
    rebuild permitted_senders...
    /opt/zimbra/postfix/conf/update_protected_recipients: line 3: postmap: command not found
    rebuild protected_recipients...
    /opt/zimbra/postfix/conf/update_protected_recipients: line 5: postmap: command not found

  6. #6
    phoenix is offline Zimbra Consultant & Moderator
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    Quote Originally Posted by Wilson_Lee View Post
    I have run the update and have error as below:

    [root@zimbra conf]# /opt/zimbra/postfix/conf/update_protected_recipients
    rebuild permitted_senders...
    /opt/zimbra/postfix/conf/update_protected_recipients: line 3: postmap: command not found
    rebuild protected_recipients...
    /opt/zimbra/postfix/conf/update_protected_recipients: line 5: postmap: command not found
    Did you try running it as the Zimbra user?
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  7. #7
    Wilson_Lee is offline Active Member
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    I found some technical document in zimbra wiki and able to reduce the spam mails.

    Thanks a lot.
    Last edited by Wilson_Lee; 06-01-2009 at 06:11 PM. Reason: still receive spam mails.

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