Blogs
on January 15, 2026
Currently, you can't use Outlook on Windows to edit calendars that are shared with your Outlook.com account, even if you've reconnected your Outlook.com account to Outlook. We're working to make it possible to edit shared calendars in Outlook 2016 for Windows. If you are having issues sending email, this might be due to validation issues with your Microsoft Account. We are aware that some users may not be able to receive email from Gmail accounts.
This can result in delays or even a full Outlook freeze on slower connections. Your profile stores a variety of settings that control how Outlook looks and feels. You can create a new profile and then add your email accounts to the new profile. If installing the latest updates didn't resolve your issue, move on to the next step.
Restore the add-ins one at a time until the problem does occur to determine which add-in is causing the problem. Although add-ins can enhance your user experience, they can occasionally interfere or conflict with Outlook. Make you should launch Outlook to con sure that the latest updates for Outlook are installed. For more information, see How to install the latest applicable updates for Microsoft Outlook (US English only). Being a Chief Technical Analyst, I am aware of the technicalities faced by the user while working with multiple technologies. So, through my blogs and articles, I love to help all the users who face various challenges while dealing with technology.
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 you should launch Outlook to con a normal state. We also released a new rule that corrected the wrong campaign verdict for all impacted customers during the incident. While these Microsoft accounts work in other Microsoft products (e.g. OneDrive, Windows, Xbox), they are non-functional when visiting Outlook.com.
We also released a new rule that corrected the wrong campaign verdict for all impacted customers during the incident. 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 Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities.
If you’re having problems importing your mail from another Gmail address, including one you got through work, school, or another organization, try these steps. If you’re having problems importing your mail, try each of the steps below. After you try each one, check to see if the problem is fixed.
You can learn you should launch Outlook to con more about the new and classic tasks in Outlook.com by going to Use To Do App to manage tasks in Outlook. Contact someone directly by selecting Start chat or Send email. If you decide you don't want the calendar you created, right-click the calendar and select Remove. Each message also has a mini toolbar when you open the message in a new window. For each message, you can delete it, mark it as unread, flag the message, or pin it to keep it at the top of your folder.
Creating a fresh profile can provide a clean slate for Outlook to start. Yes, you can often fix Outlook without reinstalling Office. 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 Outlook does not start then press Win+R and type Outlook.exe/safe to launch Outlook in safe mode. Disable faulty Add-ins, repair data files with ScanPST or create new Outlook files.
So, until you see an improvement in your inbox placement, keep notifying Gmail of your issues through their postmaster contact form—advisably every week. Refer to our comprehensive list of common SMTP settings or consult your email provider for the correct you should launch Outlook to con parameters. 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.
To manage your mailbox by reducing the size of the Outlook data file, see Reduce the size of Outlook Data Files (.pst and .ost). Facing this "Outlook keeps freezing when sending email" issue is very frustrating. However, you can use these best troubleshooting steps to solve your errors efficiently.
If you need to update your email's POP or IMAP account settings, please go to POP and IMAP account settings for more information. Update the account information with the one you received from your email provider or from the POP and IMAP server name reference topic. See and manage the tasks 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.