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.

Solutions to Troubleshoot 'Out of Memory or System Resources' ErrorCheck Resource Usage. ...Restart and Update Outlook. ...Optimize System Resources for Outlook. ...Find and Remove Faulty Add-ins from Outlook. ...Increase the Size of the Memory Heap. ...Rebuild the OST File.Apr 7, 2025

Start classic Outlook in safe modeIn Windows 10, click Start.Type Outlook /safe, in the Search programs and files and then click OK.Close and re-open Outlook.If the issue is resolved, you can keep working, or if you have time, take the following steps to find out what COM Add-in is causing the problem.

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Corrupted Outlook files are a common cause related to Outlook. To rectify/repair it, Microsoft has provided an inbuilt utility called Scanpst.exe. As a result, you can choose any of the troubleshooting solutions accordingly.

To install the latest Windows and Office updates, click the link below. Not something you want to take on lightly, but sometimes you have to. Similar to our earlier suggestion of repairing Office (see #3 Repair Your Microsoft Office above), perform the same steps except choose to Uninstall. Be aware that you may need your product key if you received one. Microsoft has its own tool for web page automatically scanning and correcting Office when things go awry. You can read about it and then run the Microsoft Support and Recovery Assistant to see if that helps.

If those steps don't work, see Need additional help? There are a number of possible reasons for Outlook to behave this way. We've presented the potential solutions in order from quickest to most time consuming. To manage your mailbox by using the AutoArchive feature, see AutoArchive settings explained. We recommend that you move several items in your larger folders to separate folders, or that you archive those items by using the AutoArchive feature.

However, web page it will stop Outlook from recording detailed information about its actions, which can sometimes assist in troubleshooting issues but is not necessary for regular use. This simple process aids in deleting all the items in your Deleted Items folder, freeing up space and tidying your Outlook mailbox. In short, it will also help you to fix Outlook is Very Slow and Not Responding.

Follow the steps below on how to create a new profile for Outlook. When Outlook is started in safe mode, all settings are reverted to Outlook default settings which allow for easier detection and rectification of errors. Once you observe that Outlook is not updating automatically, follow the instructions below to restore web page the Auto-update feature. Click on Programs and Features and then click on uninstall programs. In the drop-down list, uncheck any faulty or needless add-ins that you wish to disable, and then click "OK" and re-launch Outlook for the changes to fully take effect. "COM Add-ins" are modules that add specific features to Microsoft Office products including Outlook.

Sometimes outdated or over-protective anti-virus / anti-spam programs can conflict with Outlook or with one of your Outlook add-ins. As a result, the anti-virus blocks the add-in and prevents Outlook from functioning properly. A corrupted new profile or Outlook profile can lead to delays, crashing, or the Outlook not responding error. All users know that Microsoft Outlook is a powerful email program, but it can sometimes act up and become unresponsive. We’ve got you covered with these easy-to-understand solutions to get your Outlook back on track.

It can automatically diagnose issues, troubleshoot, and fix problems with Outlook. A more general version that can also fix Office, Microsoft 365, web page 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.

These files can be repaired through an inbuilt program in the Outlook installation directory. The above procedures will help you to resolve the Microsoft Outlook Stuck on Loading Profile error. If you are still facing the same issue, it means your PST file is damaged. If you want to repair your corrupted PST file, opt for the Cigati PST Repair Tool. It will recover the corruption from your desired PST files. Sometimes, Outlook might not work if other Office-related processes are still running.