Alternativa WhiteSmokeu za Microsoft Office Outlook z licenco odprtokodnega vira

• Microsoft Office Outlook
  Vse platforme Windows Mac Linux Chrome OS Android iPhone iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) Firefox Safari Eclipse Wordpress Facebook Microsoft Office Outlook Chrome Thunderbird Microsoft Office Word GNU Emacs Google Drive - Docs SDL TRADOS Visual Studio Code TinyMCE TeXstudio Vim OmegaT Sublime Text Fidus Writer LyX LibreOffice <oXygen/> XML Editor Apache OpenOffice Drupal Microsoft Office Suite Scrivener
• Open Source licenca
  Vsako dovoljenje Brezplačna licenca Open Source licenca Trgovsko dovoljenje