Sometimes, the businesses do not want to invest in a business subscription, but they can use free webmails to manage their email communication. When your subscription plan ends, then you can either upgrade Microsoft 365 subscription or move to another platform. Outlook is also available through Microsoft 365 subscription where users can download the desktop version and use it. MS Outlook is the inseparable part of MS Office Suite that is highly important for businesses because it can handle multiple email accounts that can work separately.