Ticari lisanslı Microsoft Exchange Server için shdlr.com'a alternatifler

• Microsoft Exchange Server
  Tüm platformlar Windows Mac Linux Chrome OS Android iPhone Windows Phone iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) jQuery Windows Mobile Slack Microsoft Office Outlook Chrome Google Calendar Drupal Google Apps Microsoft Exchange Server Apple Calendar
• Ticari lisans
  Herhangi bir lisans Ücretsiz lisans Açık Kaynak lisansı Ticari lisans