Smartermail 14 is compatible with the following desktop browser versions:
- Google Chrome 24 and higher
- FireFox 20 and higher
- Safari 6 and higher
- Internet Explorer 10 and higher
The mobile interface introduced with Smartermail 14 is compatible with iOS 7.0+ and Android 4.x+ based devices including tablets and mobile smartphones. iOS and Android based devices may access the full webmail interface but this is not supported.