The app is a multimedia email client. Here are the required features:
1. Aggregate all e-mail accounts into a single location.
2. Synchronize calendar/contacts/email with Exchange server
3. Backup/Restore accounts + settings
4. Full E-Mail search including message text
5. Combined Inbox view aggregates mail for all mailboxes into a single location
7. Full HTML inbound/outbound
8. Customizable account colors for each account
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