If you access your Outlook.com account through the iOS Mail app, you may be repeatedly asked to enter your username and password. Microsoft has released a Windows Hotfix file to remove the contacts folder synced by the Teams app. Some Safari users are unable to add email addresses in the Office 365 Not Syncing Fix To section, or cannot point the cursor in the To field.

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. 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 fix will also lead to a reduction in the total number of contacts on your contact list. We will ensure that all information is retained and only contacts with matching information in all fields will be cleaned up.

Unable to add a calendar

It warns that once you pass certain limits such as the number of folders or messages, performance can nosedive. Sometimes, antivirus real-time scanning can slow Outlook down. Configure your antivirus software to exclude Outlook files or processes from real-time scans to avoid interference.

Some users may not be able to empty their Deleted Items folder. Some users may not be able to see the left folder pane. While we fix the problem, you can send the file as a OneDrive link. There’s nothing in particular to warn you about, as there are many informational and diagnostic information there, but reading the entries may lead to a clue about what’s going wrong. Note that you can sort by clicking on the Source column.

Understanding the root causes and using the right tools can make all the difference.Microsoft has its own tool for automatically scanning and correcting Office when things go awry.Users often turn to Microsoft’s ScanPST tool, but it struggles with large files and doesn’t always finish the job.Similar to our earlier suggestion of repairing Office (see #3 Repair Your Microsoft Office above), perform the same steps except choose to Uninstall.If you can't choose any of the menu options, type inside an email message, calendar event, or contact, Outlook may have frozen.There’s nothing in particular to warn you about, as there are many informational and diagnostic information there, but reading the entries may lead to a clue about what’s going wrong.

Top 7 Common Outlook Issues and Their Solutions

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What is the best way to troubleshoot Outlook issues?
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.

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Most Outlook problems can be resolved with proper troubleshooting and maintenance. Following the fixes above will help you keep your Outlook running smoothly and protect your productivity. We hope this guide proves useful in resolving your Outlook problems efficiently.

Is classic Outlook frozen?

We will update this article as soon as we have more information on a fix. This issue has been fixed for Outlook.com country domains. If you used the workaround below you can now switch from using an Outlook.com alias to your country's domain. The root cause has been isolated to a bug introduced in build 8962, which was partially reverted, and further mitigation efforts are ongoing. If you're having problems accessing Outlook.com, you can see the status of Microsoft Office Online Services at the Service Health portal.

Unable to open Help with Contact Support buttons

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Outlook.com (the web version of Outlook) and Outlook apps require a 1st party alias (Outlook/Hotmail/Live/MSN) to send and receive email, use calendar, etc. Alexa Shahan is a tech and productivity expert with a strong focus on email tools. She tests each app and verifies every guide to ensure it’s easy to follow and truly helpful to users. You can also add the secondary connected accounts (Gmail, Yahoo, etc.) in Outlook.com as additional accounts in the Outlook profile. Most of these crashes come down to one thing – problematic data files.