Alternativa Right Inboxu za Software as a Service (SaaS) z licenco odprtokodnega vira

• Software as a Service (SaaS)
  Vse platforme Windows Mac Linux Chrome OS Android iPhone Web Self-Hosted Software as a Service (SaaS) Firefox Opera Safari Microsoft Office Outlook Chrome Thunderbird Apple Mail Gmail Sparrow Mail Pilot Acompli Mailbox FastMail Brave Google Apps Yahoo! Mail
• Open Source licenca
  Vsako dovoljenje Brezplačna licenca Open Source licenca Trgovsko dovoljenje