Offline storage table (OST) and personal storage table (PST) are two different Outlook data files used to store a copy of mailbox items on local storage. Outlook creates a PST file when you add a POP3 ...

The Outlook error 0x800408FC, The server name you entered cannot be found on the network shows up when the system can't find your email server.

Outlook is hosed. Users around the globe are reporting that both Microsoft's Outlook mail service and application are failing for them.

Microsoft Outlook is an essential tool for many and it can be critical when it doesn't open properly. We have steps to try to fix it if it fails.

To fix this problem, open Outlook and look in the bottom right corner of the application window to see if it shows Connected or Working Offline.

In one of the latest Windows updates, Microsoft enabled offline functionality in the new version of Outlook ('Outlook (new)').

Microsoft 365 products including Outlook and OneDrive appeared offline on Saturday afternoon, according to the tech company, but services were beginning to slowly return to normal after a fix to a ...