After building a fresh 10536 phone with a new factory reset, my outlook alert sounds were fine.. a week a later, and email still flows, but no audible alert..
Anyone find a fix for this? Changing tones did not reset things either..
Make sure notification sound is actually enabled within the Outlook app, sometimes they get reset on an update. It's confusing, but Outlook allows notifications to be customized based on accounts. Any change you make to Outlook notifications from your phone settings won't make a difference if it's not checked within Outlook. Check out the screenshot below.
I've found it ONLY works if "Show a notification banner" is checked on my 925. Haven't tried turning it off today after the latest Outlook update though.