Most of these crashes come down to one thing – problematic data files. When they get too large, go corrupt, or are poorly configured, things start to break. Customers with only a 3rd party email address set up as the username of their Microsoft Account will be asked to add a 1st party Microsoft alias to their account before accessing Outlook.com. Microsoft has its own tool for 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 you're having problems sending or receiving email, read how to Fix Outlook.com email sync issues. You might need to set Windows Update to automatically download and install recommended updates. Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities. To install the latest Windows and Office updates, click the link below. These features are fully compatible with Outlook.com and Hotmail accounts, and you can try them for free on any device. You just need to visit Clean Email and sign up with your email address.

Top 7 Common Outlook Issues and Their Solutions

Many users report common Outlook problems on Microsoft forums and support platforms. In this guide, we’ll walk you through practical, do-it-yourself solutions to troubleshoot and fix these issues so you can get back to work without delays. 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.

Outlook Rules Not Working

Step 1 - For both Windows and MacOS users, Microsoft Outlook has the ability to recover deleted items Outlook Desktop App. When you try to accept a shared Outlook.com calendar using your Microsoft 365 Microsoft Outlook troubleshooting for business account in Outlook 2016, you might receive the "Something went wrong" error or your sign-in might fail. To edit a shared calendar, go online to your own Outlook.com calendar, open Calendar for Windows 10, or use a mobile device.

• Outdated or conflicting ones can mess with Outlook’s core performance, causing unexpected slowdowns or outright failure to launch.
• Corrupted or badly set-up Outlook profiles can often cause start-up problems.
• If there's an ongoing outage or maintenance, it will be displayed on the portal.
• Although it's not possible at the moment to turn the feature off entirely, you can choose to remove it from your favorites list by right clicking the folder and selecting Remove from Favorites.
• When they get too large, go corrupt, or are poorly configured, things start to break.
• These features are fully compatible with Outlook.com and Hotmail accounts, and you can try them for free on any device.
• This alias will be added to their account as a secondary alias, with the original 3rd party alias will continue to be set up as the primary.
• Auto-archive, sending and receiving a very large attachment, or running some of the other mailbox tools can all be done in the background.

Further Readings

Many businesses depend on it to keep their operations running, and having it break is a nightmare that usually ends up costing lots of money and causing a lot of frustration. Fortunately, with the right Outlook troubleshooting strategies, many of the most common Outlook problems are quite straightforward to troubleshoot. Below, you will see some of the most common issues that users run into, and what the most efficient way to troubleshoot Outlook is.

Start classic Outlook in safe mode

No matter how well written add-ins are (and even Outlook itself), there will always be the occasional Outlook problem that doesn’t seem to go away or may not be related to add-ins at all. You can read how to fix your Outlook problem on the internet, but sometimes the suggestions don’t work for your specific case. So, we have produced this list of general things to try to resolve your problem in Outlook. Read on to find out how to fix common Outlook problems below. If you can't choose any of the menu options, type inside an email message, calendar event, or contact, Outlook may have frozen.

Although it's not possible at the moment to turn the feature off entirely, you can choose to remove it from your favorites list by right clicking the folder and selecting Remove from Favorites. We have recently received some reports of users who are experiencing issues with subscribing to .ics/ical calendars. 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.



She brings deep expertise built on years of focused work in the email space. 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.

Cannot send email [WORKAROUND]

While built-in tools like ScanPST offer a basic Safety net, they often fall short when it comes to rectifying deeper file damage. In addition, you can export directly into Office 365 mailboxes after recovery with no middle step required. Using Cached Exchange Mode in complex environments can lead to painful sync delays. If a user has a large mailbox or lots of folder nesting, syncing might lag or even crash. Let’s look at what causes Outlook to crash, how you can fix it, and a smarter tool that takes a lot of the stress off your plate. It warns that once you pass certain limits such as the number of folders or messages, performance can nosedive.