Email deliverability topic hub
Authentication, inbox placement, and list hygiene in the AI era. Read the deliverability guide with links to Gmail, Yahoo, M3AAWG, and RFC standards, then see which ESPs support the basics.
Onboarding
高转化 onboarding 邮件：从欢迎到激活与习惯
用尊重注意力与现有数据的序列，把注册变成首个 meaningful 行动，再变成重复行为。
AI-native ESP
Brew review
首个 AI 原生邮件平台，供 agent 通过 API 与 MCP 端到端运行_campaign。
Ecommerce marketing platform
Klaviyo review
面向 revenue 归因 email、SMS 与 flows 的电商标准。
Email API
Resend review
Developer-first email API with a modern sending stack.