Error messages when you try to connect Outlook 2007 to Exchange Server: "The action cannot be completed" or "Your Microsoft Exchange Server is unavailable" or "Cannot start Microsoft Office Outlook"

Error messages when you try to connect Outlook 2007 to Exchange Server: "The action cannot be completed" or "Your Microsoft Exchange Server is unavailable" or "Cannot start Microsoft Office Outlook"

When you try to connect Microsoft Office Outlook 2007 to Microsoft Exchange Server, you may experience any one of the following symptoms:

• If your Outlook profile has been automatically configured, you may receive the following error message:
  The action cannot be completed. The connection to the Microsoft Exchange Server is unavailable. Your network adapter does not have a default gateway.
• If your Outlook profile has been manually configured, you may receive the following error message:
  Your Microsoft Exchange Server is unavailable
  For example, this error may occur when you have an existing profile that was previously connected to the Exchange Server, and then you lose the setting for your default gateway. In this scenario, if you click Check Name to verify your settings in the E-mail Accounts dialog box, you may receive the following error message:
  Outlook cannot log on. Verify that you are connected to the network and are using the proper server and mailbox name. The connection to the Microsoft Exchange Server is unavailable. Your network adapter does not have a default gateway.

When you try to connect Outlook 2007 to Microsoft Exchange Server 2003 by using RPC over HTTPS, you may receive the following error message:

Cannot start Microsoft Office Outlook. Cannot open the Outlook window. The set of folders cannot be opened. The attempt to log on to Microsoft Exchange has failed.

This problem may occur if the Outlook 2007 client computer does not have a default gateway configured.

Comments

• Anonymous
  January 01, 2003
  Outlook cannot log on. Verify that you are connected to the network and are using the proper server and mailbox name. The connection to the Microsoft Exchange Server is unavailable. Outlook must be online or connected to complete this action. any idea? thank you

• Anonymous
  December 27, 2010
  Why did I loose Fix It? and Why can I not send outgoing messages to certain parties. It says that Microsoft needs authorization and I do not know what that is?

• Anonymous
  February 21, 2011
  I tried to open a Photobucket album in one of my Outlook Personal Folders which would not respond to the usual password. Unfortunately, I persisted and my Outlook 2007 crashed. I have not been able to open it since. I have run both Scanpst.bak and Scanpst.exe twice each and got the messages that "No Threat was found". However, I still cannot open my Outlook and I get the same message saying, "Errors were found in some files. Try using the Inbox repair tool Scsnpst.exe." Please advise me as I have all my work files in my Outlook folders. Many thanks

• Anonymous
  April 24, 2013
  When I try to log onto Microsoft Outlook I get the following:  Cannot open your default e-mail folders.  Errors have been detected in the file C:UsersJohnAppDataLocalMicrosoftOutlookOutlook.pst.  Quit outlook and all mail-enabled applications, and then use the inbox repair tool (Scanpst.exe) to diagnose and repair errors in file.  For more information about the inbox repair tool, see help. I've tried everything and to date I cannot find a fix - can anyone help?

• Anonymous
  May 23, 2013
  I'm getting the error message "The messaging interface has returned an unknown error. If the proble perists, restart Outlook". The FixIt tool has already been ran and reinstalled Outlook 2007. Still getting error message. Any ideas??

• Anonymous
  September 22, 2014
  Microsoft Office Outlook has encountered a problem and needs to close. We are sorry for the inconvenience.