Alternativy k Mailtrain pro Chrome OS s licencí open source

• Chrome OS
  Všechny platformy Windows Mac Linux Chrome OS Android iPhone Apple Watch iPad Android Tablet Windows S Web Self-Hosted Software as a Service (SaaS) Shopify Magento Community Edition WooCommerce Amazon SES (Simple Email Service) Zapier Facebook Ads
• Licence Open Source
  Jakákoli licence Bezplatná licence Licence Open Source Komerční licence