Greylisting Error

Posted on 2007-10-19
Last Modified: 2011-10-07
We recently rebooted our exchange 2003 exchange server and when we did many people in the company got a email like this.  Some were sent up to a month ago.  Is there a problem?  Did the people who were the recipients of these emails receive them?  I don't want to have to tell everyone they need to contact the recipients of those emails.  There are too many of them.  Please help:

Your message did not reach some or all of the intended recipients.

      Subject:      RE: call fwd issue
      Sent:      9/25/2007 1:09 PM

The following recipient(s) cannot be reached: on 10/19/2007 9:06 AM
            You do not have permission to send to this recipient.  For assistance, contact your system administrator.
            < #4.7.1 smtp;451 4.7.1 Greylisting in action. Try again in 1 minute>
Question by:Steelin_It
    LVL 104

    Expert Comment

    That is the greylisting bug.
    For some reason, with certain methods of greylisting, Exchange doesn't reprocess the messages correctly. The recipients did not receive those messages, you will need to send them again.

    To stop it from happening in the future, copy and paste the following in to notepad and then save it as something.reg. Double click on the file to apply it and then restart the SMTP Server Service.

    Windows Registry Editor Version 5.00



    If your question has been answered, please remember to accept the answer and close the question.

    Author Comment

    When I tried to run the file I got the following error:

    Cannot import C:\1\New Text document.reg: The specified file is not a registry script.  You can only import binary files from within the registry editor.

    Also, when I went to look for the file to edit in the registry manually running the registry editor, there is no Queueing folder or key under\in the SMTPSVC folder.
    LVL 104

    Accepted Solution

    No there is no key, it is created by the script.

    Did you include the "Windows Registry Editor Version 5.00" line?

    The key is straight export from my own system and I have a registry file I use for my own builds.


    If your question has been answered, please remember to accept the answer and close the question.

    Author Comment

    Thanks for the great help.  I did forget to add that line you spoke of above.  it wored perfectly after I added it.

    Expert Comment

    Official Microsoft Hot Fix:

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