Step 1: Synchronize offline folders to server folders.įor this, you can perform any of the following: Steps to Disable OST File in Outlook 2007 You will notice WORKING OFFLINE message on the status bar of Outlook when offline mode is active. You can do that by going to Send/Receive and selecting Work Offline. If you are facing Internet or Exchange connectivity issues, you can enable offline mode instead of disabling OST file in Outlook. Then there are some users who simply don’t require offline Outlook access and find it unnecessary to use Cached Exchange Mode.Ĭonnectivity Issues in Microsoft Exchange Server or Microsoft 365 Account Some users want to disable OST file for certain systems such as guest or shared systems. For instance, some users don’t want the OST file to get bigger and take valuable hard drive space. Sometimes, situations arise when Outlook users want to disable or turn off OST file. This file is typically created when you configure Outlook with MAPI and IMAP accounts.
It allows you to access your mailbox even when there is no Internet connectivity. OST is an Outlook data file that stores mailbox data offline.