There’s a misconception that the only difference between the Office 365 E1/G1 and E3/G3 suites just the availability of the Office 365 ProPlus/Microsoft 365 Apps.
The following capabilities are not included in Office 365 E1/G1, compared to Office 365 E3/G3.
- Office Suite
(https://docs.microsoft.com/en-us/office365/servicedescriptions/office-applications-service-description/office-applications-service-description)- Office ProPlus – Word, Excel, PowerPoint, OneNote, Outlook, Publisher, Access, Infopath, MacOffice (Win32 clients)
(Office Mobile for Android/iOS is available to E1 however Outlook for Android is NOT) - Excel Features – PowerMap, PowerPivot, PowerQuery, PowerView
- Multilanguage User Interface
- Office ProPlus – Word, Excel, PowerPoint, OneNote, Outlook, Publisher, Access, Infopath, MacOffice (Win32 clients)
- Enterprise Messaging/Email
(https://www.microsoft.com/en-us/microsoft-365/business/compare-more-office-365-for-business-plans)
(https://docs.microsoft.com/en-us/office365/servicedescriptions/exchange-online-service-description/exchange-online-service-description)- eDiscovery
- In-place Hold & Litigation Hold
- Message Encryption
- Inactive Mailboxes
- Unified Messaging Reports
- Enterprise Security
(https://www.microsoft.com/en-us/microsoft-365/business/compare-more-office-365-for-business-plans)- Data Loss Prevention for all email & files
- Cloud App Security P1 (Cloud App Discovery)
- Rights Management Services
- Azure Information Protection
- Enterprise Reporting for Microsoft 365
(https://docs.microsoft.com/en-us/office365/servicedescriptions/office-365-platform-service-description/office-365-platform-service-description)- Top DLP policy matches for mail
- DLP policy matches by severity for mail
- DLP policy matches, overrides, and false positives for mail
- Top DLP rule matches for mail
- Enterprise Management
(https://www.microsoft.com/en-us/microsoft-365/business/compare-more-office-365-for-business-plans)
(https://docs.microsoft.com/en-us/office365/servicedescriptions/office-applications-service-description/office-applications-service-description)- Group Policy Support
- Office Cloud Policy Support
- Office telemetry
- Administrative blocking cloud-based file storage
- Roaming settings
- Differences in service capacity
- Exchange Mailbox size gets smaller (100GB—>50GB)
(https://docs.microsoft.com/en-us/office365/servicedescriptions/exchange-online-service-description/exchange-online-limits) - Exchange Archive size gets smaller (Unlimited—>50GB)
(https://docs.microsoft.com/en-us/office365/servicedescriptions/exchange-online-service-description/exchange-online-limits) - Exchange Public Folder Mailboxes size gets smaller (100GB—>50GB)
(https://docs.microsoft.com/en-us/office365/servicedescriptions/exchange-online-service-description/exchange-online-limits) - Exchange Storage quota for Recoverable Items folder in Archive Mailbox – not on hold (Unlimited—>30GB)
(https://docs.microsoft.com/en-us/office365/servicedescriptions/exchange-online-service-description/exchange-online-limits) - Exchange Storage quota for Recoverable Items folder in Archive Mailbox – on hold (Unlimited—>100GB)
(https://docs.microsoft.com/en-us/office365/servicedescriptions/exchange-online-service-description/exchange-online-limits) - OneDrive for Business storage (Unlimited—>1GB)
(https://docs.microsoft.com/en-us/office365/servicedescriptions/onedrive-for-business-service-description)
- Exchange Mailbox size gets smaller (100GB—>50GB)