From time to time Microsoft Outlook adopts quite an annoying habit to hang around even if the user persistently attempts to shut it down. This problem existed in earlier versions and it may occur with recent Outlook 2013 and 2010. If your user profile or folder is stored on a network drive, Outlook will be https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html slower to respond and might become a hanging outlook problem. Your user profile is a collection of settings that let you customize the computer appearance and performance. It contains settings for desktop backgrounds, screen savers, sound settings, and other features. User profiles help make sure that your personal preferences are used when you log on to Windows.
If your computer is running low on resources, Outlook will freeze up. If your antivirus software isn't up-to-date, Outlook may not function correctly. If the problem doesn't occur after you restart Outlook, one of the add-ins is likely the cause of the problem.
This issue has been mitigated and we are continuing to monitor the issue to ensure stability. The root cause was the deployment of an incorrect campaign data file, which led to false positive campaign detection. We have since reverted to the right data file and the outbound email flow has returned to a normal state. We also released a new rule that corrected the wrong campaign verdict for all impacted customers during the incident.
If you've already clicked the Accept button in Outlook 2016, you won't be able to re-accept the invitation from another Outlook application. The person who sent you the invitation will need to remove your permissions and then send a new invitation. If you manually type in the secondary connected account email address in the "From" field, the email is sent as "On behalf of" your primary Outlook.com account. 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.
The freezing never seemed to occur when I had Outlook open but was not using it. You can automatically repair your Office program files to resolve such problems as Outlook freezing or not responding. Facing this "Outlook keeps freezing when sending email" issue is very frustrating.
It needs enough RAM, processing power, https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html and hard drive space to work properly. If your computer is running low on resources, Outlook will freeze up. If Outlook isn't stuck at a screen that says "Processing," or this didn't resolve your issue, continue to the steps below.
Occasionally, classic Outlook tries to run a process in the background. Auto-archive, sending and receiving a very large attachment, or running some of the other mailbox tools can all be done in the background. Check the status bar at the bottom of the screen to see if another process is running.
Download the latest updates by visiting your antivirus software vendor's website. To manage your mailbox by reducing the size of the Outlook data file, see Reduce the size of Outlook Data Files (.pst and .ost). I have a user whose Outlook keeps freezing/crashing, and it started right after installing the July 27th updates.
This helps to pin down the culprit that causes Outlook to freeze. A conflict with Outlook may occur with applications like desktop search, PDF software, or other Microsoft 365 tools that interact with your email account. Outlook not responding may be a frustrating error, but with the appropriate troubleshooting steps, you can often https://office365emailfix.blogspot.com/2025/10/Fix Outlook Stuck On Loading Profile (https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html)-outlook-not-sending-or-receiving.html resolve the problem on your own. Checking your internet connection and updating Outlook helps to fix this. Moreover, you can manage add-ins and follow the other tips outlined in this blog. In fact, you can get your email client back to its responsive and efficient self, allowing you to regain control of your email communication.
Or, you can disable any antivirus software add-ins https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html that are installed in Outlook. Outlook stores all your email messages, meetings and events, contacts, and tasks in data files. You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors. I'm having an issue with one Outlook 365, the program open and get stuck at loading the user profile, any profiles.
By doing this, you’ll only see the tasks that you still need to finish. It can make your tasks list respond faster because it won’t show the tasks you’ve already completed, making it easier for you to focus on what’s left to do. To get support in Outlook.com, click here or select Help on the menu bar and enter https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html your query.
If your outlook account is dmanaged, https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html then try to make new one which can seamlessly solve your issue. If this doesn’t work or you are unable to solve your issues properly, then try these troubleshooting methods. Exit Outlook, go to AppData, and manually delete cache folders. The browser version isn’t impacted by local Outlook files or add-ins.