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  • Rigoberto Oswald
  • troubleshoot-outlook-errors5629
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Opened Oct 31, 2025 by Rigoberto Oswald@rigobertooswal
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Troubleshooting Outlook: 12 Ways to Fix Send Receive Errors

If you have a large number of items in any single folder, you may experience performance issues during certain operations. For more information, see Outlook performance issues when there are too many items or folders in a cached mode .ost or .pst file. 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. If your antivirus software includes integration with Outlook, you may experience performance issues.

If you upgraded from Outlook 2003 to Outlook 2007, some people have reported that reseting a few internal Outlook files helps with performance. Microsoft has identified several issues with a recent Outlook updated (KB ). To access the filtering options faster, add them to your Quick Access Toolbar. The loading of unregistered MAPI services has been disabled by default to make Outlook more secure. 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.

For more in-depth investigations, you can rely on the results of specific data-gathering remote actions. This page will guide you through the structure of the content and how it can be used. Once done, check if the Outlook performance issue is resolved. Check whether the Outlook is running slow problem is resolved. So yes, 2 minute delays are normal in Outlook desktop as the network architecture is completely different than Outlook mobile, as @rod-it ​ laid out. Outlook desktop is obviously a much more robust client as well, so there can be a few seconds attributed to processing at the client end.

One more suggestion is to acquire the skills of Microsoft 365 backups to recover your organization’s data in cases of unpredictable system issues and glitches. Also, don’t forget to update your shared calendars frequently and update your Windows machine. Refer to below blog to speed-up Outlook application in Windows 10 or 11 operating system. I used the information to create a Registry Entry that will cause Outlook to check for new mail every 15 seconds. Another alternative might be Outlook on the web, which would sit somewhere between Outlook mobile and Outlook desktop in most cases. There are a few simple steps you can take to keep your Outlook running smoothly.

We will ensure that all information is retained and only contacts with matching information in all fields will be cleaned up. To check if you have received the fix, review your contact list to confirm duplicates have been removed. To help you get rid of these duplicates, we have released a fix which will automatically clean up your contact list. This fix will clean up duplicate contacts for end users starting August 9, 2023. Rollout of the fix to all users will take few weeks, so, some users may see the fix applied by the end of September.

See and manage the tasks Fix Outlook Site in the selected list from this window. Right-click a task for a list of options, or select a task to see and manage its details. To import contacts from other email services, export contacts, or clean up duplicate contacts, select an option from the Manage contacts menu. Add a contact to your Favorites by selecting a contact in the list, and then selecting Add to favorites.

We're working to make it possible to edit shared calendars in Outlook 2016 for Windows. It's a by-product of making more space on your PC, you delete things you don't think you need anymore. Then, one day you realize getting rid of that file was a huge mistake. Let's eliminate any feelings of despair regarding a deleted file. If you cannot restore the file from your computer's recycling bin, here's what to do. Gmail has a positive reputation when it comes to spam filtering.

Use Tasks to create, manage, and track things you want to get done. You can learn more about the new and classic tasks in Outlook.com by going to Use To Do App to manage tasks in Outlook. At the top of Fix Outlook Site the message list, you can choose how you want to view the list. There might also be a visual alert that a message is unread, has an attachment, or is flagged.

Read how to Add your Outlook.com account to another mail app. 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. This occurs because custom form script is now disabled by default. If you're curious to get started, we recommend downloading our free Fix Outlook Site trial.

In the dashboard's summary tab, you can access a helicopter view of where you might have problematic areas. Based on this information, you can navigate to the respective tab to troubleshoot in more details. I have to remind folks of that quite often Fix Outlook Site when they cook guaranteed email response times into contracts. Another potential alternative is to use a light-weight search product. For example, there used to be an Outlook search product called Lookout.

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Reference: rigobertooswal/troubleshoot-outlook-errors5629#8