Home › Forums › OS X Server and Client Discussion › Mail › postfix and 550s for non existent users at virtual domains

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  • August 22, 2005 at 9:27 pm #362878
    bluepolo
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    Hi

    The subject says it all – currently default postfix config accepts email for any user at a virtual domain and then generates the 550 later.

    Well this is unclever and leads to DHAs and other DOS, can we have synchronous rejecting ie immediate 550s for non existent users at virtual domains?

    TIA

    BP

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