| Archiving Exchange Online-based mailboxes |
Yes |
Yes |
No |
| Cloud-based archiving of on-premises mailboxes |
No |
Yes |
No |
| Messaging Records Management (MRM) |
Yes |
Yes |
Yes |
| Manual retention policies, labels, and tags |
Yes |
Yes |
Yes |
| Encryption of data at rest (BitLocker) |
Yes |
Yes |
Yes |
| IRM using Azure Information Protection |
No |
No |
No |
| IRM using Windows Server AD RMS |
Yes |
Yes |
Yes |
| Office 365 Message Encryption |
No |
No |
No |
| S/MIME |
Yes |
Yes |
Yes |
| In-Place Hold and Litigation Hold |
No |
Yes |
No |
| In-Place eDiscovery |
Yes |
Yes |
Yes |
| Transport rules |
Yes |
Yes |
Yes |
| Data loss prevention |
No |
Yes |
No |
| Journaling |
Yes |
Yes |
Yes |