I use Comcast Business Class as my internet provider and they use Exchange server for email. My Outlook 2007 has worked for months, but recently has stopped connecting to the exchange server, and Comcast has determined that My Outlook auto discovery settings appear correct. Outlook establishes a network connection, idetifies my email account and password, but then stops short of logging on to the server. I've tried reboots, repair and multiple attemps to enter my account information with the same pop up notification message "The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.". Any assistance or advice would be appreciated. Thanks.

It seems that it is rather your provider problem. What I can advice you, is to create new mail profile and try connecting again to your provider. You can create new mail profile using Control Panel | Mail and try connecting to your provider one more time With kind regards Krystian Zieja http://www.projectnenvision.com Follow me on twitter My Blog

Try using this tool: https://www.testexchangeconnectivity.com/.

Hi, Any update on this one? Have you run the tool provided by Jose? It is always a better way to troubleshoot the issue similar with yours. Best regards, SerenaPlease 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.