Using New Outlook on Windows for professional communication and productivity
Dear Nicole Feldman
Thanks for using Microsoft products and posting in the community.
Sorry to hear that.
It seems that your email jumps from the "Sent Items" folder to the "Outbox", then you close the new version of Outlook and reopen it, and then the email jumps back to the "Sent Items" folder? If this is the case, is your mailbox non-Outlook?
If so, can you tell me which domain it is? Recently, some users have also reported this problem. We found that this situation may occur after configuring a non-Outlook mailbox to the new version of Outlook. So we are also actively collecting this kind of information.
In addition, you can also log in to your mailbox on the web, test sending a test email, and then log in to the new version of Outlook to see if the problem still exists. For the current situation when you use the new version of Outlook, our suggestion is that you can continue to use the new version of Outlook, or switch to the classic version/web version of Outlook. At the same time, you can also click "Help" in the toolbar above the new version of Outlook, and then click "Feedback" in the display box on the right to feedback this problem.
I hope the above information can help you.
Looking forward to your reply.
Best wishes
Clark | Microsoft Community Support Specialist