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Tuesday, February 1, 2011

The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete - Cant add Outlook accounts

Hi have recently started getting the following error message when setting up new accounts with Outlook 2007:

The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.



Outlook then prompts me to enter the username and password, i do so and get message again. This happens on Windows XP Professional and Vista, i cannot setup any accounts for new machines.

Points to note are that OWA works fine, and previous users who are already setup work fine also. It seems to be limited to setting up new Outlook 2007 accounts.



It can find the username fine. It comes up with green ticks underr the Online Search for your server settings

Quick update i removed Exchange from the mail001 box. I then rebooted the DC, and then rebooted mail box. Then it started working again.



This is great in that it works, however i am a bit concerned about migrating my 2003 server box mail server to Windows Server 2008 in case i get the same problems again.



Indeed not sure if its 100% fixed i hope it doesnt come back. Any ideas as to why it would have stopped working?



what made the most impact, as i was intermittently getting the domain controller could not be found, was to update the system bios and all hardware updates and drivers for the server itself (not microsoft stuff, manufacturer stuff) which made a big difference. so go to your hardware manufacturer and get the updates.

One solution I found...don't know if this will work for you.

On the local box, I removed the MS Office update: KB972363 and then I was able to connect to the account to my Exchange Server.

Here's the description of this KB from microsoft: http://support.microsoft.com/default.aspx/kb/972363?p=1
at the bottom are "known issues".

Connection to Microsoft Exchange Server is not available...Outlook must be online or connected to compete this activ


Explain your issue in full detail here:

Can not send or receive any email due to the above error popping up as soon as I log on to Outllok...using Vista as software and Outllook 2003 and have Webroot antivirus



Please Also Include:

Operating system (e.g. WinXP):
Program and version you use to access Gmail (e.g. Internet Explorer 7 or Outlook 2003):
Your antivirus software (e.g. Norton 2007):
Any extensions, toolbars or plug-ins

You haven't provided enough info. I have to assume that you're talking about trying to send mail with your Gmail account. Are you using Outlook to manage your Gmail? If so, which version? If I had to guess, you're doing this at work but your Exchange server has crapped out temporarily. If so, it probably hijacked Outlook, which will continue polling the Exchange server till it comes out of its coma. I recommend using gmail.com with your favorite browser till then