Feature Comparison: Legacy Rackspace Email vs PolarisMail
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Storage and Capacity
| Feature | Legacy Rackspace Email | PolarisMail Basic |
| Mailbox Size | 25GB | 25GB |
| Maximum Mailbox Size | 25GB | 50GB(add-on) |
| Personal Cloud Storage | N/A | 5GB |
| Backup Retention | 14 Days | 30 Days |
| Attachment Size Limit | 25MB | 50MB |
Communication and Collaboration
| Feature | Legacy Rackspace Email | PolarisMail Basic |
| Webmail Interface | Basic | Modern |
| Calendar | Yes | Yes |
| Contacts | Yes | Yes |
| Task Management | No | Yes |
| Notes | No | Yes |
| Shared Folders | Limited | Yes |
| Domain Alias | No | Yes |
| Distribution Lists | Yes | Yes |
| Shared Calendars | No | Yes |
Mobile and Desktop Support
| Feature | Legacy Rackspace Email | PolarisMail Basic |
| IMAP/POP3 | Yes (IMAP recommended) | Yes (IMAP recommended) |
| SMTP | Yes | Yes |
| ActiveSync | No | Yes (Enhanced only) |
| CalDAV | No | Yes (Enhanced only) |
| CardDAV | No | Yes (Enhanced only) |
| Desktop | Yes | Yes |
| iOS/Android | Yea | Yes |
Security and Administration
| Feature | Legacy Rackspace Email | PolarisMail Basic |
| SSL/TLS | Yes | Yes |
| 2FA | Limited | Yes |
| Spam Filtering | Yes | Yes |
| Allowlist/Blocklist | Yes | Yes |
| Email Forwarding | Yes | Yes |
| Auto-Responder | Yes | Yes |
| User Extensions | No | Yes |
| Catch-all Email | No | Yes (on request) |
| Admin Control Panel | Yes | Yes |
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