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Thread: Trusted Network Spam

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  1. #1
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    Default Trusted Network Spam

    We have some users that are using email clients (thunderbird/outlook express) and I've added their subnet to our trusted networks.

    The question I have is what if their pc was infected and started sending out spam, since they are a trusted network, are the emails still scanned? Lets say one is spamming the server will Zimbra recognize it and block that user?

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

    Quote Originally Posted by b27520 View Post
    We have some users that are using email clients (thunderbird/outlook express) and I've added their subnet to our trusted networks.
    Why have you added their subnet to your Trusted Networks? It's not necessary, a user external to your LAN that authenticates against your server (with a valid email account & login) will be able to send mail via your server - you should remove their subnet from your Trusted Networks and let them authenticate against the email account.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

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    phoenix is right. Use smtp auth rather than whitelisting networks

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    Default Different subnet

    They are on a different subnet, before I added them to the trusted networks they would get relay access denied when using their client.

    So basically if they are in the trusted networks they are not scanned?

  5. #5
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    No. The problem of relay denied appears with clients like outlook and thunderbird. In your admin console uncheck " under server -----> and MTA tab-----> TLS authentication only " and send mail with my server requires authentication in your outlook client setting. It should solve your problem

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