Alternativas ao TinyLetter para Self-Hosted com licença de código aberto

• Self-Hosted
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Apple Watch iPad Android Tablet Windows S Web Self-Hosted Software as a Service (SaaS) Python BSD Windows Mobile Wordpress Facebook Shopify Magento Community Edition WooCommerce Solaris MailWizz EMA Amazon SES (Simple Email Service) PrestaShop Drupal Zapier Facebook Ads
• Licença Open Source
  Qualquer licença Licença gratuita Licença Open Source Licença comercial