

Keep in mind that when you choose to open an additional mailbox, all data of the additional mailbox is added in to the same OST file as your primary account. OST file and let Outlook re-download everything. If the new profile works, then you may be able to just rename or delete the old. Don't forget to check "ask every time" or select your new profile as the default. This problem occurs when all the following conditions are true: Your Outlook profile is configured in online mode (not cached Exchange mode). If that doesn't help, then make a new mail profile and try it again that way. When you send an email message from a shared mailbox, the sent email message remains in your Outbox until you manually perform a Send/Receive operation. Try opening Outlook in safe mode and see if that makes a difference -if it does, then start by disabling addins and turning them back on one at a time. Tried restarting Outlook 2016 rebooting the computer.

I can identify the email account by double clicking the Sending message 1 of 2 and the email account is Sending with progress Processing. If you can successfully load the additional mailbox by using the "Open another mailbox" method, then your permissions are correct and the problem is likely with Outlook. The difference between this one and what I normally see online regarding stuck at Sending message is there is nothing in the outbox. Does it open? If not, then you have a permissions issue or just need to wait longer for it to update. An email message may become stuck in Outlook because of different reasons. Outlook 2013/2016 Emails stuck in Outbox - Spiceworks Steps Already tried: » Disabled Antivirus fully and tried deleting We have 10-15 office 365 exchange email accounts and they all work perfectly fine apart from one account on one device. The solutions work on all systems and all versions of Outlook 2003 to Outlook 2016. Outlook Email Stuck in Outbox There is no copy of the same message on Office 365 OWA in the same folder.
EMAIL MESSAGES STUCK IN OUTBOX 2016 FULL
I second jrp78 - log in to OWA at as the main account, then click on the user portrait in the browser's top-right corner and choose "Open Another Mailbox", and try to switch to the new account you've given yourself full access to. The article explains how you can quickly remove or resend emails that are stuck in your Outbox.
