Microsoft 365 Business Basic
Best for businesses that need business email and other business services. Office applications not included.
Microsoft 365 Business Standard
Best for businesses that need business email, Office applications, and other business services.
Exchange Online (Plan 1)
Secure and reliable business-class email with a 50 GB mailbox per user.
Exchange Online (Plan 2)
Includes all the features of Exchange Online (Plan 1), plus unlimited storage, hosted voicemail, and data loss prevention.