Reply To: Outlook Incoming Mails Disappear automatically

Hello,

You should try these steps to fix this issue.

Open “Microsoft Outlook” >> Go to “View” tab >> “Current View” group. Make sure that Show All Messages is checked and nothing else.

It can also be the issue of third party Add-Ins, so you have to also check them and remove unnecessary add-ins.

While I was searching on the web, I found an informative article on Outlook Email Disappears. So you can also take more help from this article.

Thanks & Regards
Eddie Thwan