Alternativa MailShogunu za Software as a Service (SaaS) sa licencom otvorenog koda

• Software as a Service (SaaS)
  Sve platforme Windows Mac Linux Chrome OS Android iPhone Windows Phone iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) BSD Windows Mobile Microsoft Office Outlook VMware vSphere Hypervisor OpenPGP VirtualBox S/MIME DAVdroid
• Licenca otvorenog koda
  Bilo koja licenca Besplatna licenca Licenca otvorenog koda Komercijalna licenca