Using outlook 2016, my client was continually prompted for their password. Each of those emails seem also not to appear in the Draft folder in OWA while still editing, although they are visible and editable in Outlook. After deleting the stuck email message from the Outbox, please click the Work Offline button again to connect to the Internet. This particular account has intermittent issues with sending and emails just sit in the outbox. If you are search for Outlook 2016 Freezes When Moving Email To Folder, simply found out our info below.
Go to File, Account Settings, Account Settings.
Emails stuck in outbox outlook 2016 office 365 Top 4 Solutions to 'Email Stuck in Outbox' Issue in Outlook 2016/2013/2010 1 Change Outlook Connection StatusMethod #1 Check the Outlook connection status First, you are required to check the state of the mail.