1 Resolve Outlook for Windows issues with automated troubleshooting tools
Shayla Barrios edited this page 2025-12-01 18:49:26 +08:00

Use the classic Outlook for Windows connectivity troubleshooter to troubleshoot Outlook connectivity issues. Post questions, follow discussions and share your knowledge in the Outlook.com Community. Switch your alias to an Outlook.com or Hotmail.com account.

To reduce the number of items that are stored locally, limit the synchronization window that's used for shared folders. These keys don't clean up older Calendar content that was already downloaded. However, this method can be effective if you're willing to clear offline items and resync your Calendar (instead of bulk deleting old items). If you already have the Calendar in the profile, you have to clear the Offline Items after you set the registry keys and restart Outlook. In Sync Window Settings, adjust the number of months of data that are synced for the primary shared calendars. Use the Turn on shared calendar improvements option for users who have edit permissions to a shared calendar to improve performance.

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. A software rollout over the weekend was deployed incompletely, causing one component to send a high volume of messages to another component that had been deleted, overwhelming the routing plane servers. Availability has recovered, and engineers are investigating the root cause and identifying Fix Outlook Site problematic servers. The team is sweeping all remaining capacity to identify and address residual issues. Get Help has troubleshooters for classic Outlook for Windows you can run for many common scenarios, such as Outlook startup or profile setup problems. These often help resolve issues without the need to contact support.

This happens to accounts that are configured in the iOS Mail app. The loading of unregistered MAPI services has been disabled by default to make Outlook more secure. To access the calendar shared with your Microsoft 365 for business account, you'll need to accept the invitation from Outlook on the web, iOS, or Android. 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 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.

So, to enable the permissions, follow the steps below. Outlook Web App or OWA is a web version of Microsoft Outlook that you can use for free. Because it is available online, users can Fix Outlook Site easily access their account from any device, even from their smartphone.

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. Add a contact to your Favorites by selecting a contact in the list, and then selecting Fix Outlook Site Add to favorites. Each message also has a mini toolbar when you open the message in a new window.

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.

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).

If your Outlook crashes when opening Fix Outlook Site or on startup or even if Outlook stucks at Processing, you can fix it by opening Outlook in Safe Mode. To open Outlook in Safe Mode, follow the instructions below. You can determine if it's corrupted by creating a new profile and changing which profile is used when Outlook starts. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile. Then, each item in your calendar folder is checked for known problems that can cause unexpected behavior, such as meetings that seem to be missing.

Try accessing other websites to confirm that the issue is specific to Outlook Web. Start typing in the search box to find a contact or contact list. Right-click an existing folder and select Create Fix Outlook Site new subfolder. Calendar events can be used for your own personal event, or you can invite others to create an in-person or Teams meeting. To find the item with the attachment, scan the list of items in the thread.