If you are still seeing this issue, restart Outlook a couple of times so it can pick up the service change. Use the following steps to re-enable the Send immediately when connected option. This problem can occur if the Send immediately when the connected option is not enabled, as shown in the following figure from Outlook 2016. To release an email stuck in your Drafts or Outbox folder, select one of the sections below. Here is a comprehensive list of possible causes for the error ‘Outlook inbox not updating’ and how they can affect the working of Outlook. By applying this sort order (which is default in Outlook), you'll be always seeing the most recent communications first.

• When this problem occurs, the message remains in your Outbox folder until you manually initiate a Send/Receive operation (for example, press F9 or select send or receive).
• You can download the software on Windows Desktop or Laptop.
• To work around this issue, use an Online mode profile for your Microsoft Exchange Server mailbox.
• You can set it to a higher number if you desire / need but it works for a user who has 14 mailboxes.
• With automatic send/receive enabled and properly configured, you can maintain regular synchronization between Outlook and the email server, keeping your Inbox up to date.
• As of yesterday, the shared mailbox (for her only) is hung up on "Updating this folder" and will never update or receive new mail.
• They were both connected to office 365, when suddenly one day it said "updating inbox" and that's it.

Check Outlook Email Account Settings

Make sure the system has enough storage, especially the volume where the Outlook data file (OST) is stored. If you are running out of storage, make some space by moving some Outlook Not Sending or Receiving Email files from the storage to another folder or volume. You may also archive the OST mailbox to reduce the mailbox size.

Blocked list

These troubleshooting tips can help you resolve common issues that prevent the new Outlook inbox from updating properly. If you continue to experience problems, consider reverting to repair corrupted OST in Outlook the classic Outlook application or contacting Microsoft Support for further assistance. In this article, you will learn the reasons that can trigger the ‘Outlook 365 stuck at updating mail folders’ issue and the solutions to effectively troubleshoot and resolve the issue. Is she able to properly access the shared mailbox through OWA?

Disable Add-Ins

Restarting the computer, reinstalling office, creating new profiles - nothing works, it's working for some time, suddenly it's stuck. To work around this issue, use an Online mode profile for your Microsoft Exchange Server mailbox. If you then allow the synchronization process to fully synchronize the folder, the status bar may eventually indicate the following text. You can set it to a higher number if you desire / need but it works for a user who has 14 mailboxes.

Reasons for Outlook 365 Stuck at Updating Mail Folders

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 OST file and synchronized frequently with the mailbox server. With automatic send/receive enabled and properly configured, you can maintain regular synchronization between Outlook and the email server, keeping your Inbox up to date. After looking into it more, as the user above stated, this seems to be cache related so I nixed that on the shared box too.

Disable Cached Exchange Mode

The value shown in the status bar has an upper limit of 3.99 GB, so this problem occurs when the size of the folder being synchronized is above 4 GB. For those utilizing the classic (old) Outlook application, this section addresses issues specific to this version. Then, click FixTechGuide support for Office 365 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.

New Outlook app not updating Inbox

Outlook and third-party apps may conflict with each other, especially the security apps, such as antivirus, anti-malware, or firewall. If the antivirus program isn't Outlook friendly, you may experience certain issues while using Outlook. To check whether the antivirus app is preventing Outlook from updating the Inbox or Outbox folder, temporarily disable the antivirus program and restart Outlook.

How to Fix - "Outlook 365 Stuck at Updating Inbox and Outbox"?

For example, you may see the following text in the status bar when your Inbox folder is being synchronized with Exchange. This particular user has her own mailbox and then access to another shared mailbox. As of yesterday, the shared mailbox (for her only) is hung up on "Updating this folder" and will never update or receive new mail.