| Features | Zimbra @ SpecialAI | Google Apps |
|---|---|---|
| Maximum Number of Mailboxes | Unlimited. | Unlimited. |
| Bring Your Own Domain Names (yourcompany.com) |  |
|
| Domain Admin / User Provisioning & Management | |
|
| Maximum quota (GB/mailbox) | Unlimited (extra fees) | 25 for Premier |
| Maximum attachment message size (MB) | 22 | 20 |
| Data Portability (move you data to another solution) | Open-standards based. |
Limited. Proprietary. |
| Secure LDAP Information Lookup (Mail.app, Outlook, etc.) | |
 |
| 24/7 live support for Mac and Windows users | Included for every mailbox. | Premier: only admins. |
| Mail folder sharing | |
Limited. |
| Secure chat | (beta) |
Included. |
| Off-line access client (ie: Zimbra Desktop) | |
|
| CalDav, WebDav (CardDav coming!) compliant | |
|
| File sharing (including drag and drop!) | |
|
| Task list sharing | |
|
| Branding – Custom Logo | |
Limited. |
| Wiki / Document Sharing | |
|
| Calendar sharing & delegation | |
|
| Contact sharing & delegation | |
|
| Global Address List (GAL/LDAP) - Company Address Book |
Included. Desktop & web. | Included. (Web-only) |
| Free/busy checking for group calendaring | Included. | Included. (overlays only) |
| Resources (IE: conference rooms, projectors) | |
Premier Edition. |
| LDAP – Open/Active Directory Integration | Built-in, optional. | API’s available. |
| Instant, Self-Activation/Cancellation | |
(Activation only) |
| Advanced, Personal Anti-Spam/Anti-Virus | Included. Or use your own. | Included. |
| Desktop Sync Support for calendars & contacts (Outlook, Mail, iCal, AddressBook, Thunderbird) | Mac, Linux & Windows. | |
| Blackberry OTA sync (email, calendar, contacts) | Optional. BES. |
Web browser only. |
| iPhone Support | Optional w/monthly or free with annual |
Limited. |
| Windows Mobile & Palm sync (email, calendar, contacts) | Optional w/monthly or free with annual |
Web browser only. |
| Web 2.0 Mash-up framework (Zimlets) | Included. | Limited. |
| Web Identities (Personas) Send “from” another email address |
Included. ( Sync to Outlook) | Included. (web-only) |
| Terms | Monthly. Cancel anytime. Or Annual! | Annual. 60 days notice. |
| Service Level Agreement (SLA) | 99.9% | 99.9% for Premier |
| External POP/IMAP – Email account centralization | |
POP only. |
| Distribution Lists (mailing lists) | Unlimited & free. | Unlimited & free. |
| Aliases | Unlimited & free. | Unlimited & free. |
| Optional “free” version with Ads and no 24/7 support. | |
|
| Software as a Service (SaaS) | |
|
| May be redeployed in-house, on your own servers. | |
|
| Mining user data and other info (see privacy). | |
|
| Keyboard/navigation short-cuts | |
|
| Published Road Map | [see the map] |
|
| Restore deleted messages (rollback/undelete) | 48 days! | |
| Legal Compliance (Archiving & Discovery) | Optional. Built in! | |
| Satisfaction Guarantee | 100% | None. |
