You can restart your Mac by going to the Apple menu > Restart.Ģ. Make sure to check your Mac after each step to see if Outlook starts working again.ġ. Please try each step below one at a time. See also: Mac Mail App Opens Itself Randomly, Fix Outlook not working? If you are having a similar problem, here is how you can troubleshoot: Several factors may result in these types of performance problems. Some users have also stated that they were unable to launch the software. Another similar issue is that Outlook may become too slow to respond on your Mac. More specifically, Outlook may randomly crash or freeze when you want to check your email. Is Outlook not working correctly? This article explains how you can fix when you have Outlook mail issues on your Mac.