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  • Spam Solution

    Deal All

    please help me.........
    Mine Setup


    Mine setup is win2k Advance server DC and Exchange server 2000 enterprise.....
    around 70 users onsite and 300 users on field, field users access their mails via pop3, they download the mails and responsible for backup and other task.


    I am getting a lot a lot of spams, even though i have trend micro smb and it is working on around 85 % accurecy , per day i am receiving 100000 mails and out of them mine is only 7000, it means more than 90% spams.

    On server i have selected open relay with basic authentication.

  • #2
    Re: Spam Solution

    open relay on server? insane!

    anyhow, get a spam filtering frontend server. my personal choice would be something probably described here: http://www.arschkrebs.de/postfix/#chapter7
    ________
    Suzuki Gsx-R400
    Last edited by DYasny; 6th March 2011, 18:20.
    Real stupidity always beats Artificial Intelligence (c) Terry Pratchett

    BA (BM), RHCE, MCSE, DCSE, Linux+, Network+

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    • #3
      Re: Spam Solution

      There is no magic fix for spam, so you will have to look at the various products to see what works for you. Every site is different, and what works with one site may not work with another. Get evaluation copies and set them to archive or tag only, do not set them to delete until you can trust it.

      Exchange 2000 is quite old and is unable to defend itself against some basic spam attacks, like NDR spam or directory harvest. Therefore you should be looking for a product that can do that at the most basic level. Look for something that has tarpit options and recipient filtering - so that messages to non existent users are dropped before delivery.

      In most cases I find that the AV vendors' spam solutions are very poor, so I would avoid them.

      Simon.
      --
      Simon Butler
      Exchange MVP

      Blog: http://blog.sembee.co.uk/
      More Exchange Content: http://exchange.sembee.info/
      Exchange Resources List: http://exbpa.com/
      In the UK? Hire me: http://www.sembee.co.uk/

      Sembee is a registered trademark, used here with permission.

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      • #4
        Re: Spam Solution

        Thanks Simon;

        But can we do something for open relay,

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        • #5
          Re: Spam Solution

          http://www.msexchange.org/pages/article.asp?id=54

          The above may be worth a look
          cheers
          Andy

          Please read this before you post:


          Quis custodiet ipsos custodes?

          Comment


          • #6
            Re: Spam Solution

            What do you mean do something about open relay?
            Exchange is relay secure by default, unless you have changed something. You can secure the relaying or disable it completely if you don't need it. However as you are using POP3 then you need to have relay options enabled.

            http://www.amset.info/exchange/smtp-openrelay.asp

            Your best option would be to upgrade to Exchange 2003 or higher, which will give you RPC over HTTPS support, allowing your remote users to access the server using MAPI over port 443. That is the most secure option.

            Simon.
            --
            Simon Butler
            Exchange MVP

            Blog: http://blog.sembee.co.uk/
            More Exchange Content: http://exchange.sembee.info/
            Exchange Resources List: http://exbpa.com/
            In the UK? Hire me: http://www.sembee.co.uk/

            Sembee is a registered trademark, used here with permission.

            Comment

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