Alternativer til ACT! til Microsoft Office Outlook med open source-licens

• Microsoft Office Outlook
  Alle platforme Windows Mac Linux Chrome OS Android iPhone Apple Watch Android Wear iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) PHP JavaScript Microsoft Office Outlook Chrome Gmail Cloudron Microsoft Office Suite
• Open Source-licens
  Enhver licens Gratis licens Open Source-licens Kommerciel licens