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Outlook Can't Open Your Default Email Folders

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Applies to: Office 365 for professionals and small businesses, Office 365 for enterprises, Microsoft Exchange, Live@edu

After you try to use Auto Account Setup to connect to your email account using Outlook, the following message may appear.

Microsoft Office Outlook

Cannot open your default email folders. Microsoft Exchange is not available. Either there are network problems or the Exchange computer is down for maintenance.

This error can occur during Auto Account Setup if the person who manages your mailbox has turned off Cached Exchange Mode for your domain. If Cached Exchange Mode is turned off for your domain, you'll need to use POP or IMAP to connect to your mailbox instead of using an Exchange account.

How do I fix the problem?

If Auto Account Setup can't successfully connect you to your account and you need to connect to your email account immediately, use a Web browser or an email program that supports POP or IMAP to connect to your account using Outlook Web App. For information about how to connect using a Web browser, see Outlook Web App Supported Browsers. For information about how to connect using a POP or IMAP email program, see Access Your Account Using IMAP or POP Email Programs.

  • If you're still unable to connect, contact your helpdesk.