Try Following Solutions if Mac Outlook Cannot be Opened Because of a Problem Solution 1: Ensure that you are Running Updated Outlook and Mac OSĬarry out the following steps to update Mac OS version: The following article shows you how to fix the problem if Outlook for Mac keeps crashing at startup. The correct solution depends on your situation and the version of Microsoft Outlook you are using. Recovering and using your email client might be easier than you think. If Microsoft Outlook won’t start, don’t despair. In addition to manual methods, it also provides you with one of the best third-party repair solutions. Summary: This blog post describes how to resolve an issue due to which Mac Outlook cannot be opened because of a problem.