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Unable to open your default e-mail folders. The Microsoft Exchange Server computer is not available. Either there are network problems or the Microsoft Exchange Server is down for maintenance

    Question

  • Hi,

    We have exchange 2010 with outlook 2007 & outlook 2003. Since last few days users are getting below error message while opening the outlook.

    "Unable to open your default e-mail folders. The Microsoft Exchange Server computer is not available. Either there are network problems or the Microsoft Exchange Server is down for maintenance"

    The Encryption for RPC is enabled on exchange & it's applied through group policy on all the machines.

    Kindly advise.

     

     

     

    Monday, November 29, 2010 10:57 AM

Answers

  • Does OWA work?
    If you turn off encryption on Exchange, does Outlook connect then?

    What changed before the problem occured? Issues like this don't come out of the blue, so something has been changed.

    Simon.


    Simon Butler, Exchange MVP
    Blog | Exchange Resources
    • Marked as answer by Frank.Wang Monday, December 06, 2010 1:43 AM
    Monday, November 29, 2010 5:08 PM
  • Hi Chetan1403,

    Any updates on your issue?

    Do you mean all the users in the LAN cannot connect to Exchange 2010 with the error message?

    How about creating a new user to test?

    Please follow the below KB to double check the settings:

    Outlook connection issues with Exchange 2010 mailboxes because of the RPC encryption requirement

    http://support.microsoft.com/kb/2006508


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    • Marked as answer by Frank.Wang Monday, December 06, 2010 1:43 AM
    Thursday, December 02, 2010 7:02 AM

All replies

  • Does OWA work?
    If you turn off encryption on Exchange, does Outlook connect then?

    What changed before the problem occured? Issues like this don't come out of the blue, so something has been changed.

    Simon.


    Simon Butler, Exchange MVP
    Blog | Exchange Resources
    • Marked as answer by Frank.Wang Monday, December 06, 2010 1:43 AM
    Monday, November 29, 2010 5:08 PM
  • Hi Chetan1403,

    Any updates on your issue?

    Do you mean all the users in the LAN cannot connect to Exchange 2010 with the error message?

    How about creating a new user to test?

    Please follow the below KB to double check the settings:

    Outlook connection issues with Exchange 2010 mailboxes because of the RPC encryption requirement

    http://support.microsoft.com/kb/2006508


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    • Marked as answer by Frank.Wang Monday, December 06, 2010 1:43 AM
    Thursday, December 02, 2010 7:02 AM
  • Hi Chetan1403,

    Any updates on your issue?


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    Friday, December 03, 2010 8:29 AM
  • Hi,

     

    I have restarted the exchange server..the problem has been sorted out.

     

    Thanks.

    Monday, December 06, 2010 6:38 AM