Alternativen zu Nylas Mail Lives für Self-Hosted mit Open Source-Lizenz

• Self-Hosted
  Alle Plattformen Windows Mac Linux Chrome OS Android iPhone Apple Watch iPad Android Tablet Web Self-Hosted BSD Haiku PortableApps.com Slack F-Droid Ubuntu Ruby Gmail GNOME Arch Linux Fedora Cloudron Amazon Echo (Alexa Voice Service) OpenPGP PureOS (Purism) S/MIME
• Open Source Lizenz
  Beliebige Lizen Freie Lizenz Open Source Lizenz Kommerzielle Lizenz