She also created video training CDs and online training classes for Microsoft Outlook.
Synchronizing your Outlook (cached) address book with the Global Address book may fix these discrepancies.
Instances of mail that is bounced back to the sender may also be fixed.
Microsoft also has some great training videos you can watch to become familiar with using Office 365 applications.
A Microsoft Outlook Most Valuable Professional (MVP) since 1999, Diane is the author of several books, including Outlook 2013 Absolute Beginners Book.
The problem is likely to be caused by corrupted OST files, and various other reasons.
Try one of the following suggestions to fix the issue.Before emptying the cache, you may want to back up your Outlook information that is stored only locally on your computer.For more information, see Export or manually archive Outlook items.The content and emails in the mailboxes are not refreshed, i.e.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. Sometimes I can remove the mailbox and re-add it and it starts working but not always.