Is your Microsoft Outlook stuck in offline mode? And do you have a question that why is my outlook stuck in offline mode? This function can be hampered for three main reasons, Internet problem, email account problem or accidentally enabling offline work mode. So, follow the solution to know the more causes and it's a way to get rid of these issues here.
Also, the alternative is offered here like OST to PST converter tool that helps to save your Outlook data in the desired format.