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Once the system is connected to the Internet and the server is available, follow the next solutions to troubleshoot and fix the problem. They were both connected to office 365, when suddenly one day it said "updating inbox" and that's it. You should always use NTLM over Basic authentication, as Basic sends the username and password in the clear, and NTLM is Windows Authentication. On Exchange 2013, you also have a new option called Negotiate, which is recommended.

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Outlook alternates between "Updating this folder" and "Trying to connect". A manual send/receive fails with a "Connection to Microsoft Exchange is unavailable message". I loaded an old mail profile for the same user account and it worked fine, when I switched back to the initial profile it started to work fine as well.

This problem should only occur on the initial synchronization of a folder that is larger than 4 GB.Please make sure you set both the ClientAuthenticationMethod to NTLM and IISAuthenticationMethods to Basic,NTLM (and Basic,NTLM,Negotiate for Exchange 2013).I loaded an old mail profile for the same user account and it worked fine, when I switched back to the initial profile it started to work fine as well.I reimaged the machine of the lone person that continued to have this problem and Outlook has been working OK for the time being.Once the system is connected to the Internet and the server is available, follow the next solutions to troubleshoot and fix the problem.

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For those utilizing the classic (old) Outlook application, this section addresses issues specific to this version. Then, click on the Update Folders under Send/Receive tab to check if the synchronization issue is fixed and the folders are updating. If you didn't find the email, check the spam/junk folder. Please whitelist stellarinfo.com and request to send the link again. Restarting the computer, reinstalling office, creating new profiles fix Outlook after Windows update issues - nothing works, it's working for some time, suddenly it's stuck.

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This problem should only occur on the initial synchronization of a folder that is larger than 4 GB. If the folder size is initially lower than 4 GB but then grows to above 4 GB over time, you will not see this problem through normal folder synchronization. After looking into Repair pst file without data loss it more, as the user above stated, this seems to be cache related so I nixed that on the shared box too. Follow these solutions to fix the Outlook stuck at updating the Inbox and Outbox folders issue. It stores a copy of mail items on the mailbox server in the OST file on the local machine. The changes made in Outlook are stored in the&nbsp