Microsoft 365 Business or Enterprise
Microsoft 365 Business or Enterprise accounts are an excellent choice for anyone who uses multiple computers, tablets or smartphones and owns a domain (or is willing to buy a domain).
An Exchange mailbox offers the best sync capability: an Identical mailbox on every computer you use Outlook on, sync mail, calendar, contacts, and tasks to any mobile device (iOS, Android, or Windows Phone), access your mailbox using a web browser from any computer.
Do you need to own a domain name? It's generally better if you do. While you can use the default address assigned to the account when you set up the Office365 account, it's more difficult to compose new messages or reply to messages from Outlook.
Please note: the Business and Enterprise accounts include an Exchange mailbox, and most plans include a SharePoint site and OneDrive for Business for each mailbox purchased. The plans may or may not include Microsoft 365 desktop applications.
If you need only a mailbox and not OneDrive and other services, Microsoft Exchange Online Plans are available.
Microsoft 365 for Business is available as a subscription product if you need just the Office desktop software.
accounts purchased through GoDaddy and other Microsoft 365 resellers are business accounts but may not have all of the features enabled or have lower storage quotas.
Microsoft 365 Personal and Family subscriptions
The personal and family subscriptions are intended for non-commercial use. all Office applications are included, including Outlook, and on Windows, Access and Publisher.
Cloud Storage Pricing and Plans for Ad-free Outlook.com and 100GB OneDrive.
Microsoft 365 single purchase licenses
With the exception of Office Home & Student, single purchase licenses of Office software are licensed for all uses.
The Office Home & Student suite does not include Outlook desktop software, Access, or Publisher. It contains Word, Excel, PowerPoint, and OneNote only. Home & Business suite includes Outlook, plus Word, Excel, and PowerPoint, but not Access or Publisher.