Microsoft’s branding is somewhat unclear, as the Exchange Online subscription is sometimes marketed as “Outlook for Business.” That said, the Outlook app itself is completely free. (Image credit: Microsoft ) Pricing and plans The Microsoft Support page is an excellent resource for both Outlook and 365 users. Keep in mind, though, that large attachments may be blocked by the recipient’s email client. Outlook limits individual messages to a total size of just 20 MB, compared to 150 MB for Exchange Online. Admins can actively filter messages based on corporate policies or government regulations in order to ensure compliance throughout the organization.įinally, Exchange Online enables subscribers to send substantially larger messages than those supported by Outlook. While Outlook merely filters spam emails into the Junk folder, Exchange Online Protection is far more flexible. That said, Exchange goes above and beyond Outlook when it comes to security. This dashboard contains all the tools you need to manage your organization’s hosted email, but it may take you longer to get familiar with its features and options. On the other hand, the Exchange admin center can be significantly more intimidating for new subscribers. A desktop app is also available for Microsoft 365 users. You can access the Outlook client online or through mobile apps on iOS and Android devices. While Exchange Online provides far more tools than Outlook alone, Exchange Online users can still access their accounts through Outlook, which has a clear and professional design that makes it easy to find what you’re looking for. Exchange Online admins can customize a variety of permissions for each individual user.

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