Apr 09, 2018 · Office 365 Enterprise E5 (Includes all of Office 365 Enterprise E3 as well as advanced security, analytics, and voice capabilities) Every Office 365 ProPlus seat buys you an on-premise license for up to 5 devices per user for the Office Suite including Word, Excel, PowerPoint, Outlook, OneNote, Publisher, and Access. How to Increase Office 365 Mailbox Size to 100 GB. Nucleustechnologies.com Microsoft offers multiple plans for Office 365, and the mailbox size limit varies according to the plan. For example, the E1 plan has a maximum size limit of 50 GB for every mailbox, whereas E5 provides a size limit of 100 GB. Microsoft Office 365 for Business Premium, Enterprise E3 or Enterprise E5 licensing and plans in Canada and United States. 360 Visibility is a Microsoft Office 365 Preferred Partner and Tier 1 Microsoft CSP Provider. Self-serve license and billing management on our portal. We will setup, migrate and support Office 365. The current Exchange version and Office version your firm is using play the largest role in planning out a successful move to Office 365. If your firm has Exchange 2007 or earlier, this migration requires additional planning, with a possible two-step migration to Exchange 2013/2016, prior to migrating to Office 365 hosted email. Specific details for each Office 365 plan can be viewed on Microsoft’s website. Purchasing Evolve IP’s Managed Office 365 offers you these software-as-a-service features PLUS, IT-as-as service including 24/7/365 support from our US-based Microsoft certified specialists. Exchange Online Plan 2 is included in Office 365 Enterprise E3 and E5. ... mailboxes Each user gets 50 GB of mailbox storage and can send messages up to 150 MB in size.