Features (EN)
RackCorp UMS is feature-rich, made for multi-tenanted environments such as ISPs, Managed Service Providers, Governments, and multinationals who need to run multiple tenancies within a hosted environment.
| Feature | Available / Description | 
| Multi-domain | Unlimited domains allowed | 
| Contacts | Unlimited Contacts allowed | 
| Calendar | Unlimited Calendars allowed | 
| Tasks | Unlimited Tasks allowed | 
| Full-Text Search (including attachments) | Yes (v 1.3+) | 
| Attachment Preview | Yes (Text, Images, some other) | 
| POP/IMAP/SMTP Support | Yes (Encrypted versions of these protocols, optional to turn on unencrypted) | 
| Deleted Items / Trash | Yes (default 30 days) | 
| Granular account access control | Disable deleting / sending emails vs read-only access | 
| Auto-responder | Yes | 
| Server-side mail sort | Yes, using sieve mail filters (configurable from web) | 
| Scalable | Active-active topology allows massive scaling | 
| Fault Tolerance | Node auto-sync, multi-site, load balanced | 
| Delivery notifications | Yes (where supported by recipient) | 
| Global Address Book | Yes | 
| CardDAV, CalDav, iCal Support | Yes, Yes, Yes! | 
| LDAPS integration | Yes | 
Attachment / Spam Filtering
- 
Block attachments based on extension / type
- 
Anti-Spam
- 
Anti-Virus
- 
Greylisting
- 
Powerful admin spam hold / release functionality for large volumes of emails
Language Support
- 
English (EN)
- 
Russian (RU)
- 
Mongolian (MN)
Smart Storage
- Reduce your storage costs for unified messaging and emails by using tiers of storage
- IMAP Emails and Attachments can be stored on CIFS/NFS/S3 after idle accesses to them.
- Cloud Files can be stored on CIFS/NFS/S3
Calendar Sharing
Rich Calendar functionality, ability to create events, share events, and share calendar information between users
INSERT CALENDAR SCREENSHOT
Collaboration between employees is made easy:
INSERT CALENDAR COLLABORATION SCREENSHOT
