rejected commands from x.x.x.x due to pre-greeting traffic

Discussion in 'Mail Server Support' started by popowich, Sep 26, 2013.

  1. popowich

    popowich EQ Forum Admin Staff Member

    Aug 12, 2008
    Likes Received:

    Are you trying to fix this error in your sendmail logs?

    rejected commands from x.x.x.x due to pre-greeting traffic

    The error is logged because the source is sending smtp commands faster than your configured setting for greet_pause.

    In theory, when this is enabled, it should block spamming software that tries to send as fast as possible while not being able to handle an smtp response delay.

    To override the setting for a couple sources use the following as an example in your /etc/mail/access file:

    GreetPause:localhost 0
    GreetPause: 0

    After updating your access file run:

    makemap hash access < access

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