Alternativas ao Mailsmith para Amazon Echo (Alexa Voice Service) com licença de código aberto

• Amazon Echo (Alexa Voice Service)
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Apple Watch iPad Android Tablet Windows S Web Self-Hosted BSD Xfce Haiku PortableApps.com Slack F-Droid Ruby Gmail GNOME Cloudron Amazon Echo (Alexa Voice Service) PureOS (Purism)
• Licença Open Source
  Qualquer licença Licença gratuita Licença Open Source Licença comercial