The 100 Best Android Apps for 2019 - https://bit.ly/2PWe259
16 Android Apps Actually Worth Paying For - https://bit.ly/2G7vkJX

********************
Nine is not a free app.
After enough time using the free trial for 2 weeks and you are satisfied, please purchase Nine licenses.
The price for a license is US $14.99.
********************

As of today email communication became a critical thing as interpersonal communication skill within an organization or in your daily life. There might be nothing more important than efficient communication in the work of a company. Nine is a full-fledged email application for Android based on Direct Push technology to synchronize with Microsoft Exchange Server using Microsoft Exchange ActiveSync, and also designed for entrepreneurs or ordinary people who want to have efficient communication with their colleagues, friends, ‎and family members at anytime, anywhere. You may already have good experience with other E-Mail apps for Android. Regardless of your existing experience, we will give you a superb experience more than anything else. Leveraging E-Mail, Contacts, Calendar, Tasks and Notes on your mobile devices through wireless networks enhances your user experience and dramatically reduces your time.
 
Key features
- Direct Push Synchronization with Exchange ActiveSync. Nine does not have any server to store user's Nine data. Nine app connects to user server directly. All Nine data is stored in user device only.
- Calendar and Contacts (Integrated into stock Calendar and Contacts application along with Nine account)
- Rich-Text Editor
- Client Cert
- S/MIME
- IRM
- Global Address List (GAL)
- Select folders to push (Email notification per each folder)
- Full HTML (inbound, outbound)
- Secure Sockets Layer (SSL)
- Hybrid Email Search (Integrate with fast local search and online search)
- Conversation Mode
- Unread Badge (Nova Launcher, Apex Launcher, DashClock and  Samsung, Sony, Huawei & LG devices)
- Widgets (Unread badge, Shortcuts, Email list, Tasks list and Calendar Agenda)
- Notes Sync (Exchange 2010 and higher)
- Tasks & Calendar Sync 
- Modern Authentication for Office 365 

Supported Servers
- Exchange Server 2003 SP2, 2007, 2010, 2013, 2016, 2019
- Office 365, Exchange Online
- Hotmail
- Outlook.com
- Gmail, G Suite (Google Apps)
- iCloud
- Other servers(IBM Notes Traveler, Groupwise, Kerio, Zimbra, Horde, IceWarp, MDaemon, Kopano etc) supported Exchange ActiveSync
- Other servers(Yahoo, GMX, Mail.ru, etc) supported IMAP

Permission Details
* WRITE_EXTERNAL_STORAGE 
- To copy the attachment to an external storage and to export Nine settings.
* READ_EXTERNAL_STORAGE
- To import attachments from an external storage and to import Nine settings.
* CALL_PHONE
- To call a contact in Nine Contacts
* READ_PHONE_STATE
- To deliver the Device information to server (ActiveSync function)
* GET_ACCOUNTS
- To use the account for purchasing a license and to manage accounts information registered in system.
* WRITE_CONTACTS, READ_CONTACTS
- To use when syncing the user's contacts to server 
* WRITE_CALENDAR, READ_CALENDAR
- To use when syncing the user's calendar to server
* CAMERA:
- To scan QR code for Entrust Smart Credentials

** Available Android
- Android 4.1 (Jelly Bean) and above
 
** Note
- Nine is not cloud based. It stores your accounts’ passwords only on the actual device. It connects only to the actual mail servers. It stores your messages only on the device.
- Nine uses the Device Administrator permission.
 
** Support
- If you have a question or a special request, just send an email to support@9folders.com and we will get back to you as soon as we can.

Nine is a full-fledged and intuitive email app which supports Exchange and IMAP