The first thing you need to do in order to connect to OVPN, is to install OpenVPN Connect for iOS.
Open the Mail app, and click the configuration file that you sent to yourself.
Then choose Copy to OpenVPN. At this point the OpenVPN Connect app will open and look like this:
Click the green circle with the plus sign in it.
Enter your username in the field called User ID and your password in the field called Password.
Activate Save, and then Connection. You should now be connected to OVPN and you will see:
You should now be connected to OVPN and be able to browse the internet safely. To make sure everything was set up correctly, please check the dashboard to verify that you are connected.
Also make sure that you do not have any DNS leaks by going to IPleak.net and check your detected DNS Address.
You should have 220.127.116.11 or 18.104.22.168 as your address if everything is working. If you see another address, follow this guide to fix any DNS leaks .
guides.software_ios: OpenVPN Connect