Easy Installation | SMTP / PHPMail / GMail Support / Amazon SES / MandrillApp / SendGrid | phpMailer / SwiftMailer Engine | E-Mail Submission Limits | Multi-User System | Multi Language and Language Editor | Responsive | Mobile Performance Feature | Twitter Bootstrap Support | Workbench Theme Selection | AJAX / JSON Controls | E-Mail Verification | Bounce Mail Handler and Rule Editor (included 153 rule) | User Daily Sending Limit | WYSIWYG Editor | reCAPTCHA and Unique Form Keys | API Support | Static / Dynamic Short Codes | Advanced Graphical Statistics | LeUpload File Manager | RSS Feed & Web View Options | Single / Double Opt-in Verification