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  • Anonymous Logon

    Should this setting have any permissions? What is the impact if I uncheck all options in this? I am having a large number of unknown domains sending emails from my Exchange 2000 server and I do not have an open relay. I do, however, have several asp web sites that have a "Contact Us" utility written with CDOSYS.

    Thanks~

  • #2
    Re: Anonymous Logon

    Removing the "Allow Anonimous" option in the Default SMTP Virtual Server will cause your Exchange to stop receiving email from outside, because no one on earth will know how and with what to authenticate against it.

    However, if you're using a mail relay, and it can be configured to authenticate, then yes, you could remove this setting, because the only email coming from outside will be via the mail relay.

    Also, consider the possibility to set up a new SMTP VS, and perhaps use both settings, one for incoming mail from outside, and the other for incoming SMTP mail traffic from inside.
    Cheers,

    Daniel Petri
    Microsoft Most Valuable Professional - Active Directory Directory Services
    MCSA/E, MCTS, MCITP, MCT

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