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  1. #1

    Best email server solution for a large deployment with 1 million users?


    I'm currently researching the best solution for a large email service. The solution must be unix/linux based. It must have clustering and mirroring. It must scale to basically unlimited users. It must have a good management system to add new servers for expansion, and also a good system to manage the users.

    So far, it seems to me the best solution for what I'm looking for is:

    I have also looked at:

    Is there an open source product that has clustering and mirroring? Is there any other products I'm missing? Anybody have any experience with or any of the above I listed?

    Any help is much appreciated.


    Last edited by wyatt12; 06-28-2010 at 03:32 AM.

  2. #2
    Join Date
    Jul 2007
    If you have required resources, you can build one using Postfix and other packages for the various requirements. The other packages include but are not limited to courier-imap, maildrop, clamav, etc.
    Prashant T.

    Don't run after Success. Run after Excellence and Success will soon follow.

  3. #3
    Join Date
    Oct 2002
    Vancouver, B.C.
    I'm not sure about the mirroring, but you can definitely do clustering with Cyrus Murder, and IMAP Aggregator.
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