BlueMail allows you to safely sync all your accounts to your other or new devices! To do it both easily and safely please follow the following steps:
On your other/new device, add an account you already had on your old device.
You will get a system message that allows you to sync your accounts by tapping Verify Number.
If you choose Later you can always get back to the sync process by tapping More (o o o) | Global Settings | Advanced Features | Backup Accounts
You will need to enter your mobile phone number.
Press Send and after a short while you will get an SMS with a 5 digit code.
You will be asked to enter that code and confirm it.
You have few tries and when you are able to enter the right code you have verified your number on that new device.
Now the verification