Mail2000 provides One-Time Password Authentication to protect your account’s security. When you enable the OTP Authentication, you also need to enter the OTP code except your account and password, and then can login to Mail2000. The OTP code will push to your mobile device which you registered as received device. You can enable OTP function to register device with @Mail2000 App.
13. Smartphone Module
13.8.1 How to Register the OTP Received Device?
13.8.2 Start to Use OTP Authentication