The connection to the microsoft exchange is unavailable. outlook must

This diagnostic does automated checks and returns possible solutions for you to use to try to fix any detected issues. If you are connecting to an Exchange On-Premises mailbox, see the following articles for additional troubleshooting:.

If you have an older version of Outlook, change the Logon network security setting to Anonymous Authentication to fix this issue.

To do this, follow these steps:. Click Show Profiles , select your Outlook profile, and then click Properties. To locate and view the registry setting for Anonymous Authentication in the Outlook profile, follow these steps.

Modifying the Outlook profile by using the 'Profiles' registry path is not supported and may cause your Outlook profile to be in an unsupported state. Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you access it, back up the registry for restoration in case problems occur. Select the first subfolder , and then examine the data of the Account Name binary value by double-clicking the value.

For example, the Account Name value points to [email protected] under the subkey. Under the x subkey, locate the Service UID binary value. It represents a GUID for example, c3 d1 9a 7b 80 1b c4 4a 96 0a e5 b6 3b f9 7c 7e. Locate the subfolder in your profile that matches the GUID value identified in step 6 for example, c3d19a7bbc44aae5b63bf97c7e. Under the subfolder that you found in step 7, examine the d0d binary value. It represents a GUID for example, 5f cf d5 f1 ba 5c 6f 45 b3 57 cc 5e 0d 16 94 Locate the subfolder in your profile that matches the GUID value identified in step 8 for example, 5fcfd5f1ba5c6f45bcc5e0d Under the subkey found in step 9, examine the value of the binary value.

This value determines whether Outlook is using Anonymous Authentication. If you would like to give a person permission to access a folder in your Office account it involves giving permission in two places. First, you need to give the person permission to access your Office e-mail account Mailbox e.

Shenan Stanley. Get together with your Exchange administrator and get the proper settings entered into your Outlook so you can connect to your Exchange email server. How satisfied are you with this reply?

Thanks for your feedback, it helps us improve the site. Kathleen Orland. Please clarify your type of mail account. The Fix: The laptop was running a fresh installation of Windows 8 Pro along with Microsoft Office so I was fairly confident nothing was corrupt. The Latest. Manipulating dbt Files with Shell Scripts 12 January, Tableau More About the Author. Log4j Vulnerability CVE Information The InterWorks team will be providing updates to this blog as we continue to work on vulnerability remediation with our customers.

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Hi, Have you tried to recreate a new mail profile and then test the issue? Friday, September 6, PM. Start the service and that should go away Proposed as answer by T. Schmitz Thursday, November 10, PM. Tuesday, August 12, PM. Hi, I am encountering the same issue on an outlook client and server, recreating the profile did not help and the registry hack did not help, what else could cause outlook to lose connection to the server? Monday, July 13, AM.

Thank you. Monday, July 20, AM. Hi Everyone, I was experiencing the exact same thing.