If you can log in and access your emails successfully, it indicates there is an issue with your Outlook client. For this, you can log in to your Office 365 account via the web. Also, verify that the server is available and the profile is active. Check Network Connectionįirst, check the network connection and make sure you are connected to the Internet.

Solutions to Fix Outlook Stuck while Updating Inbox and Outbox Foldersįollow these solutions to fix the Outlook stuck at updating the Inbox or Outbox folders issue.

Inconsistent or damaged Outlook data file (.ost).

Outlook conflict with other apps, such as Antivirus.

Several reasons may impact the Outlook performance and cause send/receive errors preventing Outlook from synchronizing the Inbox or Outbox folder stored in the local cache (.ost) with the mailbox server. Reasons for Outlook 365 Stuck at Updating Mail Folders In this article, you will learn why Outlook 365 is stuck while updating the Inbox and Outbox folders and how to troubleshoot and fix the problem.

The Send/Receive errors in Outlook 365 usually occur due to system crashes, abrupt shutdowns caused by power failure, or any hardware/software-related problem. In such cases, users can neither send nor receive emails, leading to Outlook being stuck at updating the Inbox and Outbox folders issue. However, Outlook cannot update the mail items to or from the mailbox server when synchronization fails. The changes made in Outlook are stored in the OST file and synchronized frequently with the mailbox server and vice-versa. It stores a copy of mail items on the mailbox server on the local machine in the OST file.

Outlook 365 works on two-way synchronization.

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