Alternativa MailSponsu za Self-Hosted z licenco odprtokodnega vira

• Self-Hosted
  Vse platforme Windows Mac Linux iPhone Web Self-Hosted Software as a Service (SaaS) Firefox Opera Safari PHP JavaScript BSD Java Chrome Docker Ruby Node.JS C++ Yandex.Browser Laravel
• Open Source licenca
  Vsako dovoljenje Brezplačna licenca Open Source licenca Trgovsko dovoljenje