Alternativy k GyazMail pro Amazon Echo (Alexa Voice Service) s licencí open source

• Amazon Echo (Alexa Voice Service)
  Všechny platformy Windows Mac Linux Chrome OS Android iPhone Apple Watch Android Wear 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) OpenPGP PureOS (Purism) S/MIME
• Licence Open Source
  Jakákoli licence Bezplatná licence Licence Open Source Komerční licence