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AnswerThe Microsoft Exchange Mail Submission Service is currently unable to contact any Hub Transport servers in the local Active Directory site. The servers may be too busy to accept new connections at this time.

  • Wednesday, November 04, 2009 7:58 PMraman03 Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     

    Hello,
    We have 2 Exchange 2007 SP1 Roll up 8 servers running Mailbox and Hub transport role on both the servers.

    I am also seeing this same warning message and when it appears users are not able to send or receive any emails.  There are no other warnings or errors and no back pressure issues.  This is the only warning message we are seeing.  When this warning appears I do not see any issues with RAM, Virtual memory or CPU everything seems normal just "Submission" queue has lot of messages in it.  To resolve this issue we have to restart the server. 
    I am aware of this information http://www.microsoft.com/products/ee/transform.aspx?ProdName=Exchange&ProdVer=8.1.240.1&EvtID=1009&EvtSrc=MSExchangeMailSubmission&FileVer=8.1.240.1&FileName=&EvtType=&LCID=3081

    All the 3 explanations mentioned in this does not match to our issues. It also says to increase MaxConcurrentMailboxSubmissions. Currently our servers are set to 30. I was wondering and wanted to be sure that if we increase this number it would not create any other issues or it would resolve the problem.  Or is there any other possibility or issues which could be triggering this event id 1009 warning.

    I appreciate your help or suggestions.
    Thanks,

    =================
    Event Type: Warning
    Event Source: MSExchangeMailSubmission
    Event Category: MSExchangeMailSubmission
    Event ID: 1009
    Date:  10/8/2009
    Time:  7:38:24 AM
    User:  N/A
    Computer: WWMAIL06
    Description:
    The Microsoft Exchange Mail Submission Service is currently unable to contact any Hub Transport servers in the local Active Directory site. The servers may be too busy to accept new connections at this time.
    ===================

    Raman


    Raman

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