高性能、自托管的开源邮件列表与新闻通讯管理器，单个二进制。
Open-source alternatives to Mailchimp
Email marketing and subscriber management
Mailchimp website ↗2 open-source alternatives
Open-source alternatives to similar software
E-commerce store building and management
CRM customer relationship management
Automated workflows that connect all kinds of apps
Customer support tickets and help desk
Google's email service
All-in-one CRM for marketing, sales and customer service
Small-business accounting and bookkeeping
Customer support and ticketing system