

This solution can be applied if you're sure the Exchange Server has always the full content of your mailbox. In my case I found nothing and retrieved all my outlook items and deleted the old OST the same day. The step 7 can be done after few days or weeks if you believe you lost something. Press Delete on your keyboard to remove it. Press the Down Arrow key on your keyboard to highlight the name or email address you wanted to delete. Type the first three character of the cached name into the To field to trigger the AutoComplete feature. Delete the old OST file from the trashbin Click the New button to open a new message.Alternatively, if you are looking for something super simple and fast. Checked that all email are properly downloaded and no issue found Gmail, Outlook, Yahoo Maila and Zoho Mail are few among the most popular Email. I try to find the lost folders and its contents through search functions but its.The unread counter is now reliable again.

Launch Outlook, the OST file would be re-created and all email from the mailbox downloaded again

