If Outlook is open close it > Open Outlook > At the notification prompt > Click ‘Allow’. a user name and password for the Exchange server: With Outlook 2016 on Win 10. Click the ‘Apple Icon’ (top left) > System Preferences > Notifications > Scroll down and select Outlook > On your keyboard press the ‘Delete/Backspace’ key, to remove Outlook > Close system preferences. Disable and Enable Mail Toggle To fix the problem where Mail app keeps. I tried a few solutions but this is the only one that worked.
I don’t know if it was a macOS update or a Microsoft Office update that had broken it, (or if I’d done something stupid myself!). like this old thread below, we have customers which have access to shared mailboxes and wants receive an alert for e-mails arriving on that other mailboxes visible on their outlook profile. When you are as absent minded as me, that’s a recipe for disaster. Occasionally I could hear the notification ‘sound’, but I had to open outlook and change to the notification window to see them. You can change how often outlook checks for new mail or turn it off completely in Send & Receive settings- Ctrl+Alt+S.
So recently when the notification pop-ups stopped working, it was a potential problem. That should be covered by the Settings in Settings > Notifications, but also check Outlook's File, Options. Like most of us I spend my working day based around Outlook calendar meetings and entries, I’ve even got birthdays and anniversaries in there.
