Exchange Server
A family of Microsoft client/server messaging and collaboration software.
1,197 questions
Error Creating Outlook Profile
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Nate Johnson
0
Reputation points
We have been experiencing issues with Outlook 2016 connecting to Exchange 2016. We are on a local, isolated environment. We have been running Exchange 2016 for a few years. Recently users have not been able to connect to Exchange. When creating a new profile autodiscover finds the domain account and populates all the fields, but then we receive an error stating, "Outlook could not log you on. Verify you are connected to the network and are using the proper server and mailbox name. The connection to Microsoft Exchange is unavailable. Outlook must be online to or connected to complete this action." We are also seeing the error that the OST file is not an Outlook file. Due to the issues we are attempting everything we can. We built an Exchange 2019 server. Unfortunately, we are seeing the same issues. Nothing we have found works. We are currently using web access, which is working fine but our preference is to use the desktop app. Thanks for the help.
Exchange Server
Office
Office
A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.
1,479 questions
Outlook
Outlook
A family of Microsoft email and calendar products.
3,427 questions
{count} votes
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Aholic Liang-MSFT 13,826 Reputation points Microsoft Vendor2023-04-18T06:26:42.31+00:00 Hi @ Nate Johnson ， According to my research, this error generally occurs in Outlook 2016 and may be a corrupted Outlook profile or a corrupted data file.
In order to narrow down your problem, I would like to confirm the following with you: 1.Do all users in your organization use the Outlook2016 client and all have this issue?
- Did you delete the previously corrupted data files before rebuilding the configuration file?
- Does this issue persist with profile created in the Outlook client installed on a brand new operating system?
In addition, you can refer to this link to Test E-mail AutoConfiguration on the computer in question and see if the OG page Autodiscover is configured successfully:Mailboxes - Test E-mail AutoConfiguration - Microsoft Community
（Kindly note: Please clear the Use Guessmart check box and the Secure Smart Authentication check box and view the log page. Maybe you can share the screenshot after removing all privacy information like domain name and email addresses.）
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Aholic Liang-MSFT 13,826 Reputation points Microsoft Vendor
2023-04-21T09:47:02.92+00:00 Hi @ Nate Johnson，
Does this issue have any updates?
If it has been resolved, you could share your solution, your action would benefit others who have similar issues. If you have any questions or need further assistance, please feel free to post back. Thanks!
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