Fix Tech Issues Fast Troubleshooting & Guides | #guide to Office 365 sign-in errors

Places and Regions

Fix Tech Issues Fast Troubleshooting & Guides

One more check is to see if the shared mailbox is showing the same connectivity problem on a new Outlook profile.

OST vs PST: Know the Complete Difference! | #outlook stuck updating folders solution

Comedy

OST vs PST: Know the Complete Difference!

If you're using an Exchange email account, you can delete the offline Outlook Data File (.ost) and Outlook will recreate the offline Outlook Data File (.ost) the next time you open Outlook.

Fix Tech Issues Fast Troubleshooting & Guides | #exchange connectivity diagnostic

Cars and Vehicles

Fix Tech Issues Fast Troubleshooting & Guides

If your Outlook OST file isn’t syncing properly with Office 365, you’re not alone.

Microsoft 365 Outlook Sync Issues Software & Applications | #outlook sync help from FixTechGuide

Pets and Animals

Microsoft 365 Outlook Sync Issues Software & Applications

Follow these steps to repair your Outlook personal folder file (.pst) by using Inbox Repair tool. If you can open the original Outlook Data File, you might be able to recover additional items.