You may wirelessly and automatically sync mail, contacts and calendars to your BlackBerry 10 device. This is also known as over-the-air sync, or OTA sync, and ActiveSync is supported natively on BlackBerry 10. BlackBerry Enterprise Server (BES) is not offered to BlackBerry 10 users going forward.
Before creating your account, create a backup of your calendars and contacts as well as your BlackBerry settings.
On your BlackBerry 10 device, select Settings:
Tap on Accounts:
Select Advanced (at the bottom of the screen):
Choose Microsoft Exchange ActiveSync:
Enter the following information:
Domain: leave blank
Username: your full zMailCloud email address
Email Address: your full zMailCloud email address
Password: your password
Server Address: yourcustomaddress.zmailcloud.com
Use SSL: On
Use VPN: Off
Select your preferred services and tap Done when you’re finished:
The phone will now pull all your data from the server and will wirelessly sync data from this point.
If you have multiple accounts, you can set a default account in the Accounts pane shown in step 3.