Cost per mailbox
$6.95
$4.95
Money Back Guarantee
30 days
30 days
Contract Time Period
None
None
Cancellation Fee
None
None
Email Client Accessibility
Rich Cross-Browser Support
Full MS Outlook Integration
Zimbra AJAX & HTML Client
Zimbra AJAX & HTML Client
Multiple Calendars Per User
Calendar Delegation & Sharing
Outlook & Exchange Migration Utilities
Mobile Client Accessibility*
Windows Mobile Device Support
ActiveSync Activation Fee
FREE
FREE
Cost to change mobile devices
FREE
FREE
BerrySync Access
$7.95
n/a
BerrySync Activation Fee
None
n/a
BerrySync Contract Time
None
n/a
BerrySync Cancellation Fee
None
n/a
BlackBerry Activation Fee
None
n/a
BlackBerry Contract Time
None
n/a
BlackBerry Cancellation Fee
None
n/a
99.999% Guaranteed Up-Time
Unlimited User Name Aliases
Unlimited Domain Name Aliases
Unlimited Distribution Lists
Cost per Support Phone Call
FREE
FREE
Postini Anti-Virus Filtering
Postini Anti-Spam Filtering
Ability to Control Access Levels
Attachment Size
50 megs
50 megs
Automated Credit Card Billing