End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
SpringCloud微服务实战——搭建企业级开发框架(四十三):多租户可配置的电子邮件发送系统设计与实现 https://codingnote.cc/zh-hk/p/660188/