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on January 13, 2026
If you try to perform other actions while Outlook is in use, Outlook may not respond. Let the task in process finish its job before you try another action. Make sure that the latest updates for Outlook are installed. For more information, see How to install the latest applicable updates for Microsoft Outlook (US English only).
We have found a pretty easily solution that most of the time with this error. If Outlook isn't stuck at a screen that says "Processing," or this didn't resolve your issue, continue to the steps below. If the issue is urgent or affecting your work, don’t waste time trying 20 fixes. Our certified Outlook support team is here to resolve the issue remotely. When you install Office, an Inbox Repair Tool (SCANSPST.EXE) is also installed on your PC. The Inbox Repair Tool can resolve issues by scanning your Outlook data files and repairing errors.
You can read about it and then run the Microsoft Support and Recovery Assistant to see if that helps. It can automatically diagnose issues, troubleshoot, and fix problems with Outlook. A more general version that can https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html also fix Office, Microsoft 365, and other Outlook problems can be found here. When you try to accept a shared Outlook.com calendar using your Microsoft 365 for business account in Outlook 2016, you might receive the "Something went wrong" error or your sign-in might fail. If you typically use an Outlook.com account for email, this issue can occur if there are multiple aliases on the account and the 3rd party email address is the primary alias. If you're having problems sending or receiving email, read how to Fix Outlook.com email sync issues.
Also, you can recover permanently deleted items and attachments from Outlook with the help of this Outlook repair tool. You can even migrate PST files to Office 365, email servers, and web email clients with the help of this software. If all the above methods were unsuccessful, you could take a closer look at the Outlook data file instead. You can easily use ScanPST to examine and repair your PST file. If that does not work you can try using SFWare PST repair software.
So, we have produced this list of general things to try to resolve your problem in Outlook. To edit a shared calendar, go online to your own Outlook.com calendar, open Calendar for Windows 10, or use a mobile device. If you're still unable to send or receive email, read how to Fix Outlook.com email sync issues. Blocking someone doesn't stop their email from coming to your mailbox, but it does automatically move the message to your Junk Email folder where you can review it (in case it was blocked in error). Some customers may experience a delay when trying to create a new email address, or alias, for their Outlook.com account.
Your profile stores a variety of settings that control how Outlook looks and feels. You can create a new profile and then add your email accounts to the new profile. If repairing your Microsoft 365 programs didn't resolve https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html your issue, move on to the next step.
Availability has recovered, and engineers are investigating the root cause and identifying problematic servers. The team is sweeping all remaining capacity to identify and address residual issues. If you prefer to access Outlook on a desktop, you can try installing a different browser, such as Microsoft Edge.
If you are still seeing this issue, restart Outlook a couple of times so it can pick up the service change. All colleagues have a on-prem mailbox, just like myself. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. We recommend setting Windows Update to automatically download and install recommended updates.
For example, the first time you try to Dismiss All on a list of reminders, Outlook asks you if you're sure you want to do that. If you don't choose an option on that dialog box, Outlook won't let you do anything else. Pressing Alt+Tab will help you switch from window to window and help you see what dialog boxes might be stopping Outlook from responding. Create your account and connect with a world of communities.
If Outlook is performing some operation on hundreds or thousands of messages at once, it might appear to be stuck. Give Outlook a few minutes to finish the process and it should start to work again. To work around the issue, you will need to end all Office processes that are running and disable the presence features. On June 25th, https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html 2019, the Outlook Team made a change to the service to fix this issue.
Originally, the freezing would only occur when I actually tried to do something. So, if I tried to open a message, search my inbox, write a new email, go to the calendar, etc., it would freeze up for about 5-10 seconds at a time. Then would work as normal before freezing up again. The freezing never seemed to occur when I had Outlook open but was not using it. If creating a new profile solves your issue, you can return to the Show Profiles dialog and delete your old profile. If installing the latest updates didn't resolve your issue, move on to the next step.