You don’t actually have to check each and every message. The first thing to check is whether all messages that you expect to be on the mail server (via webmail) are still there as well. Step 1: Verify that the messages still exist on the server The process is fairly simple to perform but make sure you do some checks first. In these cases, it might be best to reset the local cache of Outlook and let it rebuild. Is there any way to get Outlook to sync or download these emails again?Ĭorruptions in the cache are rare (especially for Exchange based accounts) but can still happen under various circumstances like an unexpected shutdown or crash of your computer or Outlook. For instance, I see several new emails in my mailbox when I login to webmail which I don’t see in Outlook.Īlso, it looks like the entire month of June has gone missing in Outlook but the emails are luckily still available on the server. Lately I’m having some sync issues with my mailbox.