So try to clear the offline items by following these steps: Resolution 2: Delete OST Files Outlook caches and stores email messages, calendar events and other items in Offline Storage Table (.ost) file.Outlook maintains a "nickname" list that is used by both the automatic name checking and the Auto Completion features.Resolution 1: Clear Offline Items Most Exchange account configured in Outloook has Cached Exchange Mode enabled by default to allow user to continue working with Outlook when offline in addition to improve the performance.When the items in Outlook is mismatched with online version, the cached items may be corrupted.To search through subfolders in addition to the current folder, look for a box next to the search box that has a drop-down menu. You can also choose to search the Current Mailbox or All Outlook Items.hen using Microsoft Outlook client to access Exchange mailboxes and Inbox, the Outlook does not actually update the all mailboxes and Inbox folder.After you restart Outlook, Outlook generates a new nickname cache.Complete a brief survey to get a complimentary 70-page whitepaper featuring the best methods and solutions for your virtual environment, as well as hypervisor-specific management advice from Tech Target experts.
only the old emails are shown, and new emails are not downloaded to Outlook, even though the status bar stated that the folder is updated.
The nickname list is automatically compiled as you address email messages.
If the nickname cache becomes corrupt, Outlook may not be able to identify recipients, may offer incorrect recipients, may send to an incorrect or old email address, or may send the message to the wrong person.
The new contents such as emails, contacts, calendar items, tasks, notes and others are not updated and not downloaded even though user manually select “update folder” in order to pull the new data.
But user can login to OWA (Outlook Web Access) or to continue to access the missing email messages, appointments, contacts, tasks, journal entries, notes, posted items, and documents.
However, no new suggested contact items are added to the folder.