Ticari lisanslı Thunderbird için CollabSpot Boards'a alternatifler

• Thunderbird
  Tüm platformlar Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry iPad Android Tablet Windows S Web Self-Hosted Software as a Service (SaaS) Firefox Chrome Ruby Thunderbird Joomla MySQL Community Edition Redmine Cloudron MariaDB Ruby on Rails Jira Microsoft SQL Server PostgreSQL
• Ticari lisans
  Herhangi bir lisans Ücretsiz lisans Açık Kaynak lisansı Ticari lisans