Office 365 E1 vs E3
18 of 72 features differ. Differences are shown first, grouped by product area.
- Office 365 E1
- Office 365 E3
Prices are US list prices per user/month with an annual commitment, verified November 1, 2026. Sources: Office 365 E1, Office 365 E3 (opens in a new tab).
Key differences
- 18 of 72 features differ, most in Data protection & compliance (6), Threat protection (5) and Apps & productivity (2).
- Office 365 E3 costs $16.00 more per user/month than Office 365 E1: $26.00 per user/month against $10.00 per user/month.
- Office 365 E3 includes 13 features Office 365 E1 does not, such as Defender for Office 365 Plan 1, Data loss prevention (DLP) and Clipchamp.
- Every feature Office 365 E1 includes is also included in Office 365 E3.
- 5 features are in both at a different level, such as Exchange Online: Plan 1 (50 GB) in Office 365 E1, Plan 2 (100 GB) in Office 365 E3.
- 13 included only in Office 365 E3
- Included
- Included at that level
- Add-on
- Partial or announced
- Unclear in the sources; verify before buying
- Not included
| Feature | Office 365 E1, $10.00 per user/month | Office 365 E3, $26.00 per user/month |
|---|---|---|
| Suite editions, 1 difference | ||
| Office apps and services edition | E1 | E3 |
| Apps & productivity, 2 differences | ||
| Microsoft 365 Apps | Not included | Enterprise |
| Clipchamp | Not included | Included |
| Email & calendar, 2 differences | ||
| Exchange Online | Plan 1 (50 GB) | Plan 2 (100 GB) |
| Exchange Online Archiving | 50 GB | 1.5 TB |
| Files & intranet, 2 differences | ||
| OneDrive for Business | Plan 1 (1 TB) | Plan 2 (1 TB+) |
| SharePoint Online | Plan 1 | Plan 2 |
| Threat protection, 5 differences | ||
| Defender for Office 365 Plan 1 | Not included | Included |
| Advanced anti-phishing | Not included | Included |
| Real-time reports | Not included | Included |
| Safe Attachments | Not included | Included |
| Safe Links | Not included | Included |
| Data protection & compliance, 6 differences | ||
| Data loss prevention (DLP) | Not included | Included |
| eDiscovery (Standard) | Not included | Included |
| Information protection in Office 365 apps | Not included | Included |
| Message encryption | Not included | Included |
| Retention labels | Not included | Included |
| Retention policies | Not included | Included |