Fix your Outlook email connection by repairing your profile
Press Windows + R key, type ‘Outlook.exe /safe’ in the Run window, and click the OK button or press the Enter key. If the issue is resolved, try disabling the add-ins as there could be faulty or incompatible add-ins causing the problem. Restart Outlook normally to check if the issues or errors you encountered are resolved. Then click on Add to create a new profile and fill account details and Outlook will recreate Outlook profile.
The problem is that this is starting to affect everyone in the company. It started with one user and now we have 20 reports and growing. I’d rather not go through every registy in the company to fix this issue. I suppose if it comes to it I can set a group policy to disabled all Outlook addins. It’s just strange that this is happening to everyone regardless of Outlook version (2016 and 2019) or Windows version (Windows 7 and Windows 10). You can change the TeamViewer settings to disable the TeamViewer's Outlook addi
If memory serves me right, modern auth with 2fa, and being a GA and using the account for outlook are known for issues. So, it looks like the version of Outlook that I have won’t play nice with Modern Authentication. I have confirmed that on two different PCs that are accessing the same mailbox with the same version of Outlook, which is the latest version from Microsoft included within my Office 365 packag
Oftentimes in the disabled add-in box is Adobe Send & Track or Adobe PDF Maker, but also sometimes Salesforce for Outlook, which we need to continue to have enabled. Yes, I’ve been disabling them from the Outlook menu, but a select few keep re-enabling themselves. I’ve changed the load behaviour from the regitry for some users and that seems to have stopped them from loadin
Windows 10 will reach EOS (end of support) on October 14, 2025. Create your account and connect with a world of communities. Once I added the AlwaysUseMSOAuthForAutodiscover value, it Troubleshoot Office 365 Sync and Login Issues popped up the modern auth prompt and worked perfectl
Worst nightmare for paying Bills and Trading Card Sellers like me since the out letter slot is unavailable too, so I have to go to the post office as well to send out letters. It's been like this for 4 weeks and USPS told us at the start the "problem will be fixed soon wait 3 weeks" 3 weeks have passed. Run the Inbox Repair Tool (SCANPST.EXE) to fix them quickly. Yes
The SAM will monitor storage capacity and warn you when space is running out. You can try out the Microsoft Management Tools on a 30-day free trial. This service is cloud-based and so all the user interface is browser-based and all of the software is executed remotely – you don’t need to install any components on your local server. O This command checks if the client machine can resolve the Exchange server’s domain name to its correct IP addres
If your Outlook OST file isn’t syncing properly with Office 365, you’re not alone. Thousands of users face corrupted OST files, sync errors, and missing mailbox data after system updates or unexpected shutdowns. In this 2025 guide, we’ll show you how to repair the Outlook OST file and restore seamless email performance without losing important data. If your Outlook inbox isn’t refreshing automatically, leaving you waiting for new messages, you’re not alone. Many Microsoft 365 and Outlook users experience email synchronization problems caused by outdated cache, network delays, or improper settings. Here’s a complete 2025 guide to get your mailbox updating in real time again.
Incorrect send/receive intervals often delay inbox updates. Go to File → Options → Advanced → Send/Receive and set automatic send/receive every 5 minutes for best performance. Large mailbox sizes, unstable network connections, and abrupt shutdowns are the leading causes of OST corruption. Microsoft provides a built-in tool called SCANPST.EXE to scan and repair minor OST corruption. Chat with our experts or create a support request now.
If the OST works properly, disable unnecessary add-ins from File → Options → Add-ins. But knowing the process on how slow my local state government takes to fix things, it could be a long time. They took 4 months to fix a crosswalk light post after some idiot crashed into it and I couldn't walk anywhere without Troubleshoot Office 365 Sync and Login Issues taking a huge detour.
If Outlook still doesn’t sync, create a new mail profile. Head to Control Panel → Mail → Profiles → Add and add your account credentials again. A corrupted OST file can pause your business communication, but with these repair steps you can restore your Outlook in minutes. Follow each method carefully, keep your account synced to Office 365, and maintain regular backups to avoid future data loss. You’ll see files ending with ".ost" — these store your cached mailbox data. Yes — Outlook will re-sync mailbox data from the server once you relaunch the app, as long as you use an Exchange or Office 365 account.