Microsoft outlook updating cached headers
To repair this data file, review Microsoft's documentation.About: Outlook 2016 for Mac stores messages and other items, such as calendar events, contacts, tasks, and notes, as a SQLite database on your computer.However, you must have folder read/write permissions to open an Outlook Data File (.pst).\Local Settings\Application Data\Microsoft\Outlook Note: If you are unable to view the folder named "App Data" in your user folder, this is because you do not have the proper permissions to view this folder.If you click the address bar at the top of the File Explorer window, you can type in the location manually.By default, Cached Exchange Mode creates and uses an Offline Folder file (.ost) and then downloads and maintains a synchronized copy of the items in all folders in your mailbox.You work with the information on your computer, and Outlook synchronizes the information with the server.When your connection to the Exchange computer is interrupted, you can continue to work with your data.When a connection is restored, changes are automatically synchronized, and the folders and items on the server and on your computer are identical again.
Outlook items that are saved on your computer are kept in an Outlook data file.
The primary differences between the two types of Outlook data files are as follows: When you work offline, folders that are synchronized are determined by Send/Receive groups.
By using Send/Receive groups, you can choose which folders are synchronized and kept current so that when a connection to the server is not possible or you choose to work offline, you can continue to work with those items.
Again, this isn’t needed or recommended if you are not sure what you are doing.
Now you know how to manage your Auto Complete Cache in Outlook, and get rid of any old email addresses you don’t need any more!