Office 365 Exchange Online Plan 1
Secure and reliable business-class email with a 50 GB mailbox per user.
Each user gets 50 GB of mailbox storage and can send messages up to 150 MB in size
Compare calendars to schedule meetings and access collaboration features, including shared calendars, groups, the global address list, external contacts, tasks, conference rooms, and delegation capabilities
Every mailbox is protected with premier anti-malware and anti-spam protection via Exchange Online Protection
Keep your inbox clean by automatically moving old messages to an In-Place Archive
Office 365 Exchange Online Plan 2
Includes all the features of Exchange Online Plan 1, plus unlimited storage, hosted voicemail, and data loss prevention.
Each user gets 100 GB of mailbox storage and can send messages up to 150 MB in size
Take advantage of unlimited storage (100 GB of storage in the user's primary mailbox, plus unlimited storage in the user's In-Place Archive)
Take advantage of hosted Unified Messaging services that provide call answering, a dial-in user interface, and company automated attendant capabilities
Control sensitive business data with built-in data loss prevention (DLP) policies based on regulatory standards such as personally identifiable information (PII) and payment card industry (PCI), which help to identify, monitor, and protect sensitive data through deep content analysis
Office 365 Business Premium
Includes all the features of Exchange Online Plan 1, plus fully installed Office, 1 TB file storage and sharing, video conferencing, and more.
Includes the following Office Applications
Other Services Included
Email hosting with 50 GB mailbox and custom email domain address
Desktop versions of Office applications
Outlook, Word, Excel, PowerPoint, OneNote, plus Access and Publisher for PC only
Web versions of Word, Excel, PowerPoint, and Outlook
One license covers 5 phones, 5 tablets, and 5 PCs or Macs per user tooltip about application compatibility in various versions of Office
File storage and sharing with 1 TB of OneDrive storage
Inform and engage with communication sites and team sites throughout your intranet using SharePoint
Host unlimited HD video conferencing meetings for up to 250 people with Skype for Business tooltip about Office 365 for business mobile apps
Chat-based workspace to connect your teams with Microsoft Teams
Let customers schedule appointments online with Microsoft Bookings
Collaborate across departments and locations with Yammer
Manage tasks and teamwork with Microsoft Planner
Maximum number of users per domain - 300
24/7 phone and web support through Microsoft
Microsoft 365 Business Basic
Best for businesses that need easy remote solutions, with Microsoft Teams, secure cloud storage, and Office Online (desktop versions not included).
Premium Office apps included
Web and mobile versions of Word, Excel, and PowerPoint included.